A collection of interactive websites that estimate, calculate, evaluate, translate,
inspect, detect, disinfect and reject all sorts of mean, nasty ugly thiings. You get the drift!

Science/Math

Acceleration Equivalents

Enables you to convert between nine units of acceleration.
http://www.microimg.com/science/acceleration.html

Angle Conversions

Convert to and from various angle units.
http://www.webcom.com/legacysy/convert2/angle.html

Angular Acceleration

Convert to and from various units.
http://www.webcom.com/legacysy/convert2/angacc.html

Angular Velocity

Convert to and from various units.
http://www.webcom.com/legacysy/convert2/angvel.html

Area Equivalents

Convert area measures from one square unit to another.
http://www.microimg.com/science/area_equiv.html

Astronomy Calculator

The Astronomy Calculator aspires to provide general information about the phases of the moon, planets and next annual meteor showers. You supply the date, time of observation, and the number of hours east and west from directly overhead.
http://w3.one.net/~rback/frames.html

Biopolymer Calculator

Calculate the molecular weight, the extinction coefficient, the concentration, and the melting temperature of a single stranded nucleic acid. Additionally, you can enter a protein sequence and calculate the molecular weight (using average isotopic mass), extinction coefficient, the concentration, and the formal charge. For both sets, either nucleotide or amino acid composition and percentages are calculated.
http://paris.chem.yale.edu/extinct.html

The Body Height/Weight Converter

Converts body height and body weight from English to metric units or from metric to English units. [New URL]
http://www.geocities.com/bodyconverter/

Body Surface Area Calculator

A form which allows you to calculate an adult's Body Surface Area (BSA), based on height and weight.
http://www.ultradrive.com/bsac.htm

Capacitance

Convert to and from various units.
http://www.webcom.com/legacysy/convert2/capac.html

Capacity and Volume

Convert between metric, U.S. liquid and dry measures, British Imperial liquid and dry measures, Old Russian liquid and dry measures, and cooking measures. Just enter the amount you know and then click in any other box to see all the conversions.
http://members.cftnet.com/kc4vbt/web-docs/Converter/capacity.html

Charge

Convert to and from various units.
http://www.webcom.com/legacysy/convert2/charge.html

Circular Measure Conversion

Enter either the circumference, radian, degree, grade or nautical rhumb to find the other four. [New URL]
http://www.convert-me.com/en/convert/circular

Compressible Aerodynamics Calculator

Computes the standard relations for compressible flow of a perfect gas.
http://www.aoe.vt.edu/aoe3114/calc.html

Computer Storage Conversion

Converts between bits, bytes, megabytes and seven other computer data storage units.
http://www.convert-me.com/en/convert/computer

Conversion Page

Use this page to convert to and from U.S. fluid to metric measures and U.S. dry to metric measures.
http://hbd.org/brewery/cm3/recs/convert.html

Current

Convert to and from eight units of current.
http://www.webcom.com/legacysy/convert2/current.html

Dendritics --Weight Units Calculator

Convert weight between grams, carats, pennyweights, ounces.
http://www.dendritics.com/units-f.htm

Density Altitude Calculator

This calculator shows you how much the air conditions on any given day will alter the density of the air. Enter the altitude, temperature, altimeter setting and humidity, then click the calculate button. [New URL]
http://www.westechperformance.com/pages/calc.html

Energy/Work Equivalents

This site gives you nine choices of units of energy/work to convert to and from.
http://www.microimg.com/science/energy-work_equiv.html

Engineering, Scientific Unit Converter

Choose from twenty-six different categories of engineering and scientific units.
http://www.legacysy.com/~legacysy/convert2/convert2.html

Force Conversions

Convert between ten units of force.
http://www.webcom.com/legacysy/convert2/force.html

Fruit Conversions

Apples and oranges. [New URL]
http://www.sciencemadesimple.net/fruit.html

Graphing Vector Calculator

Learn about vectors and vector operations by sketching and playing with them.
http://www.frontiernet.net/~imaging/vector_calculator.html

Heat Index Calculator

This calculator will take your air temperature and relative humidity and calculate the heat index. [New URL]
hhttp://www.web100.com/~sib/heatindex.html

Ideal Gas Law Calculator

Solve for pressure, volume, moles or temperature.
http://www-tech.mit.edu/Chemicool/idealgas.html

Illuminance Conversions

Convert between four units of illuminance.
http://www.webcom.com/legacysy/convert2/illum.html

Inductance Conversions

Convert between seven units of inductance.
http://www.webcom.com/legacysy/convert2/induct.html

Inverse Symbolic Calculator

A set of programs and specialized tables of mathematical constants dedicated to the identification of real numbers. It also serves as a way to produce identities with functions and real numbers.
http://www.cecm.sfu.ca/projects/ISC/

Jumpin' Jehosaphat, the Counting Sheep

Give Jehosaphat a simple math problem to solve and she'll jump the answer!
http://www.dodds1.com/Java/Jj.html

Length Conversions

Convert lengths between twenty-five different units of measurement.
http://www.webcom.com/legacysy/convert2/length.html

Luminance Conversions

Convert between four different luminance units of measure.
http://www.webcom.com/legacysy/convert2/lum.html

Magnetic Flux Conversions

Convert between three different units of magnetic flux.
http://www.webcom.com/legacysy/convert2/magnet.html

Mass Conversions

Convert between twenty different units of measurement.
http://www.webcom.com/legacysy/convert2/mass.html

MegaCalculator

More than forty calculators in one, with links to dozens more. [New URL]
http://www.megaconverter.com/mega2/

Metric Conversion in Javascript

World Wide Metric presents four calculators to convert to and from metric: length, weight, pressure and volume.
http://www.worldwidemetric.com/metcal.htm

Metrology Equivalents

Convert to and from eight units of metrology.
http://www.microimg.com/science/metrology_equiv.html

Power Conversions

Convert to and from fourteen units of power.
http://www.webcom.com/legacysy/convert2/power.html

Pressure Conversions

Convert to and from twenty-seven units of pressure.
http://www.webcom.com/legacysy/convert2/press.html

SI Prefixes Conversions

Convert to and from fourteen SI prefixes.
http://www.webcom.com/legacysy/convert2/si.html

Specific Heat Conversions

Convert to and from seven units of specific heat.
http://www.webcom.com/legacysy/convert2/specific.html

Speed Conversions

Convert between nine different measurements of speed.
http://www.text-trieve.com/products/references/speedconv.htm

Temperature Conversion Calculator

Convert a temperature to and from Celsius, Fahrenheit, Réamur, Kelvin and
rankine.
http://www.cchem.berkeley.edu/ChemResources/temperature.html

Thermal Conductivity Conversions

Convert to and from nine units of thermal conductivity.
http://www.webcom.com/legacysy/convert2/thermal.html

Time Conversions

Convert to and from eleven units of time.
http://www.webcom.com/legacysy/convert2/time.html

Torque Conversions

Convert to and from six units of torque.
http://www.webcom.com/legacysy/convert2/torque.html

U.S. Fluid or Liquid Equivalents

Convert between eight different units.
http://www.microimg.com/science/USfluid_equiv.html

Velocity Conversions

Convert to and from twenty-three units of velocity.
http://www.webcom.com/legacysy/convert2/velocity.html

Voltage Conversions

Convert to and from eight units of voltage.
http://www.webcom.com/legacysy/convert2/voltage.html

Volume Conversions

Convert to and from thirty-three units of volume.
http://www.webcom.com/legacysy/convert2/volume.html

The Weather Calculator

The El Paso National Weather Service Office's weather calculator features temperature, moisture, pressure and wind unit conversions for 16 different weather-related variables. [New URL]
http://www.srh.noaa.gov/elp/wxcalc/wxcalc.html

Weather Calculator and Conversion Page

More than a dozen weather-related calculators, including temperature, wind chill, heat index, snow density, sea level pressure, air density and geostrophic wind.
http://members.aol.com/brianwp18/wxpage/wxcalcs.html

WebMath: Instant Solutions to your Math Problems

This is a site with calculators that will help you solve a huge variety of math problems from everyday simple problems (figuring a tip; the sale price of an item) to word problems, converting fractions to decimals, as well as help with trigonomy and calculus problems.
http://www.webmath.com/index.html

Wind Chill Calculator

Fill in the air temperature and choose either Fahrenheit or Celsius. Then enter your wind speed, and choose which units your wind speed is in. Press "calculate it" to see the resulting wind chill factor displayed. [New URL]
http://www.srh.noaa.gov/elp/wxcalc/windchill.html

Wind Shade Calculator

This calculator shows the shelter effect (wind shade) of blunt obstacles (buildings, trees) in any 30 degree sector near a wind turbine.
http://www.windpower.dk/tour/wres/shelter/

Health

Activity Calorie Calculator

Calculate the number of calories you burn for 156 activities. Fill in your weight and the average amount of time you spend working out. If you enter the time as one minute, you'll you know how many calories your body burns per minute for each activity.
http://www.primusweb.com/fitnesspartner/jumpsite/calculat.htm

Asthma Calculator

This calculator can help you determine if asthma is causing you to be out of breath.
http://www.drkoop.com/tools/calculator/asthma.asp

Body Fat Estimator

This estimator uses two different methods, one based on height and weight, the other based on waist size and weight, to estimate your body fat. (Taking the results with a large grain of salt is recommended.)
http://www.stevenscreek.com/goodies/pi.shtml

Body Surface Area Calculator

A BSA calculator with advanced features.
http://www.halls.md/bsa.htm

Breast Cancer Risk Calculator

Calculate a woman's probability of developing breast cancer, using risk factors.
http://www.halls.md/breast/risk.htm

Calorie Calculator

Enter your height, weight, age, sex and daily activity level to find your calorie calculations.
http://www.stevenscreek.com/goodies/calories.shtml

Calorie Control Council's Enhanced Calorie Calculator

Search the database for the foods you've eaten (or plan to eat) throughout the day. Calculator will generate number of calories and fat grams for your daily diet. Follow the directions at the bottom of the page.
http://www.caloriecontrol.org/cgi-bin/Enhanced_calcalc/enhanced_calcalc.cgi

Calories Burned Calculator

Before starting those hours of straining, stretching, huffing and puffing, use this calculator to find out how many calories per minute you burn with each exercise. You enter the number of minutes you spend doing listed activities.
http://homearts.com/helpers/calculators/burncal.htm

Carbohydrate Calculator

This calculator helps you determine what is your daily carbohydrate intake requirement.
http://www.drkoop.com/tools/calculator/carbohydrate.asp

Cholesterol Reduction Calculator

This calculator helps you determine if you are at risk for heart disease.
http://www.drkoop.com/tools/calculator/cholesterol.asp

Cost of Smoking Calculator

Have you got money to burn?
http://www.drkoop.com/tools/calculator/cigarette.asp

Depression Calculator

This calculator will help you determine if what you're feeling is more than the blues.
http://www.drkoop.com/tools/calculator/depression.asp

Dessert Wizard

Did that hunk of cherry cheesecake really blow your diet? How many extra miles do you have to run? Forget the guesswork and the guilt: The dessert wizard reduces it to a science by calculating for you.
http://my.webmd.com/dessertwizard

Diabetes Type II Risk Calculator

This calculator helps you determine if you are at risk for adult-onset diabetes.
http://www.drkoop.com/tools/calculator/diabetes.asp

Due Date Calculator

Use this calculator to figure out when your baby is due.
http://www.babycenter.com/calculator/1523.html

Exercise Risk Calculator

Use the Exercise Risk Calculator to determine whether or not you should consult a physician before starting an exercise program.
http://www.drkoop.com/tools/calculator/exercise.asp

Fat Intake Calculator

What is your recommended daily fat intake?
http://www.drkoop.com/tools/calculator/fat.asp

Fiber Calculator

This calculator helps you determine your daily fiber requirement.
http://www.drkoop.com/tools/calculator/fiber.asp

Growth Percentile Calculator

See how your child's measurements compare to those of his or her peers.
http://www.babycenter.com/growthchart/

Health Risk Appraisal

WebMD's Health Risk Appraisal is an educational tool for you and your family that can help you better understand the daily challenges of maintaining your health and the health of your loved ones.
http://my.webmd.com/special_event_article/article/2755.242

Heart Disease Risk Calculator

This calculator can assess the likelihood that you will experience coronary heart disease in the next 10 years.
http://www.drkoop.com/tools/calculator/heart_disease_risk.asp

Height Prediction Calculator

This calculator will predict how tall a child is likely to be. You enter the child's sex, age, weight and height and the height of the child's mother and father.
http://www.knockdoctor.com/calculator/heightpredic.htm

HIV Risk Calculator

Use the HIV risk quiz to help you determine whether you should take an HIV test.
http://www.drkoop.com/tools/calculator/hiv_risk.asp

How Well Are You Eating Calculator

Do you eat the way the experts say you should be eating? You supply the number of servings you ate from each of the pyramid's major food groups and you'll find out how well you're doing!
http://homearts.com/helpers/calculators/ddiary.htm

Nicotine Dependency Calculator

This nicotine dependency test will help determine your level of nicotine addiction.
http://www.drkoop.com/tools/calculator/nicotine.asp

Ovulation Calculator

To help determine the time range for ovulation, this ovulation calculator takes day 14, the middle day in the spread, and the length of your cycle, as its variables.
http://www.babycenter.com/calculators/ovulation/

The Post-Baby Weight-Loss Calculator

Helps you determine how many calories you should eat to lose those post-baby pounds.
http://www.babycenter.com/calculator/3949.html

Preconception Weight Loss or Gain Calculator

"Planning to get pregnant? Getting down -- or up -- to your ideal body weight can help you have a healthier pregnancy. How much should you weigh? Find out here. "
http://www.babycenter.com/calculator/4193.html

Pregnancy Calendar

Generate a customized day-by-day calendar of your pregnancy based on your baby's due date.
http://www.babycenter.com/calendar/getinfo

Pregnancy Weight Gain Estimator

Not sure how much weight you're supposed to gain? And where does it all go, anyway? Enter your pre-pregnancy height and weight, and you'll get an estimate.
http://www.babycenter.com/calculator/1522.html

Protein Calculator

Are you eating enough protein?
http://www.drkoop.com/tools/calculator/protein.asp

Runner's Calorie Calculator

Enter your weight and the number of miles you have run, and find out the number of calories you burned while running, Also includes encouraging comments. [New URL]
http://www.technisoft-design.com/goodies/cc.htm

Sleep Calculator

Are you getting the sleep you need?
http://www.drkoop.com/tools/calculator/sleep.asp

Stress Calculator

Use the stress calculator to categorize how stressed you are.
http://www.drkoop.com/tools/calculator/stress.asp

Target Heart Rate Calculator

You enter your personal statistics to find your target heart rate while exercising.
http://www.stevenscreek.com/goodies/hr.shtml

Waist to Hip Ratio Calculator

Are you an apple or a pear?
http://www.drkoop.com/tools/calculator/waist_hip.asp

Finance

Affordability Analyzer

A calculator which helps you determine the price of the house that you could afford to buy based on an analysis of your savings and your budget.
http://www.homefair.com/homefair/sept95/frafford.html

Annual Yield Calculator

This calculator computes the annual yield required to achieve a given total return over a specified number of years. To calculate the required annual yield, you either enter a total rate of return or the present value and desired future value of the investment.
http://www.finaid.org/calculators/annualyield.phtml

Annuity Calculator

Calculates annuity factors representative of the market.
http://www.retireweb.com/annuitycalc.html

Budgeting for College

This site helps create a realistic budget for college expenses. It includes those items easy to overlook, like newspaper subscriptions, auto registration and pet care expenses.
http://www.bankamerica.com/tools/stud_budget.html

Car Lease Calculator

This calculator takes a MSRP, bargained discount (%), down payment, lease length and lending rate to calculate estimated lease payments.
http://www.interest.com/hugh/calc/lease.cgi

College Cost Projector

College costs increase at about twice the inflation rate. Current increases have averaged from 6% to 7%. The College Cost Projector calculates an estimate of how much college will cost several years from now.
http://www.finaid.org/calculators/costprojector.phtml

Compounding Calculator

This calculator takes a lump of money and compounds it monthly over a fixed period of time at a fixed annual yield. Plus it allows you to add monthly contributions.
http://www.interest.com/hugh/calc/compound_js.html

Convertible Balloon Mortgage Calculator

You enter the principal balance, type of loan, initial interest as a percent, the monthly pre-payment during initial fixed period and whether you'd like the output as HTML or plain text. type
http://www.interest.com/hugh/calc/balloon.cgi

FinanCenter.com Calculators

From this page you can follow links to a large number of calculators that will help you find answers to your financial questions. Calculators are divided by topic into the following categories: homes, autos, credit cards, investing, planning, banking and insurance.
http://www.financenter.com/calculate/all_calculate.fcs

Financial Aid Estimation Form

This form is used to prepare an estimate of the Expected Family Contribution (EFC) and financial need.
http://www.finaid.org/calculators/finaidestimate.phtml

Historical Currency Table

The Historical Currency Table allows you to download a whole period with exchange rates plus an average, high and low rate.

http://www.oanda.com/converter/cc_table

How Much Estate Tax Will You Pay?

This calculator provides a way to estimate what your estate might be worth in the future.
http://www.interest.com/hugh/calc/estate.cgi

Inflation Calculator

This calculator adjusts any given amount of money for inflation, according to the Consumer Price Index, from 1800 to 1999.
http://www.westegg.com/inflation/

Life Insurance Needs Calculator

Helps you estimate how much life insurance you should carry, so that there will be enough money to pay for your children's education and your family's living expenses should you die.
http://www.finaid.org/calculators/lifeinsuranceneeds.phtml

Loan Calculator

Fields include: loan amount, payment amount, number of payments in months, month of first payment, and interest rate. You supply your information and select which field you want calculated.
http://www.math.nyu.edu/~jensen/loan.html

Loan Comparison Calculator

Computes an estimated monthly loan payments for three loans at the same time. You can also use it to compare the total payments and total interest paid for different interest rates, loan terms, and monthly payments.
http://www.finaid.org/calculators/loancomp.phtml

Loan Payment Calculator

The Loan Payment Calculator computes an estimate of the size of monthly loan payments and the annual salary required to manage them without too much financial difficulty.
http://www.finaid.org/calculators/loanpayments.phtml

OANDA Currency Converter

You can view any exchange rates among the 164 currencies for any day since 1 January 1990 through today. The currency converter is updated daily at 8:00 p.m. EST. Type the amount you wish to exchange. Choose the desired currencies and a date (note the day/month/year format).
http://www.oanda.com/cgi-bin/ncc

Parent Loan Calculator

This Parent Loan Advisor provides you with an estimate of the amount of educational debt you can reasonably afford for your children's education, given
http://www.finaid.org/calculators/parentadvisor.phtml

Precious Metal Calculator

Calculate the latest on-line price for gold, silver, platinum, palladium.
http://www.dendritics.com/metal-f.htm

Relocation Salary Calculator

This site, which maintains cost of living information in hundreds of U.S. and international cities, helps you figure out what an equivalent salary would be in the new city compared to what you earn where you live now. Hint: Omit commas when entering salary figures.
http://www.homefair.com:80/homefair/cmr/salcalc.html

Roth vs Traditional IRA Calculator

Compares Roth vs traditional IRAs based on your current age, IRA balance, annual contributions, estimated returns, inflation, and tax rates.
http://www.interest.com/hugh/calc/roth2.cgi

Saving Bond Redemptive Value

Supply denomination, series, and date of issue. Then click on "compute value."
http://app.ny.frb.org/sbr/

Savings Growth Projector

This calculator illustrates how regular contributions to an interest-bearing bank account or investment fund will grow due to compound interest. Interest is compounded at the same rate as the contribution frequency.
http://www.finaid.org/calculators/savingsgrowth.phtml

Savings Plan Designer

Shows how much money you must contribute each month to an interest-bearing bank account or investment fund in order to reach your savings goals.
http://www.finaid.org/calculators/savingsplan.phtml

Savings Plan Yield Calculator

This calculator computes the annual interest rate required to reach your savings goal given the present value of your savings, the value of your regular contributions, and the amount of time available.
http://www.finaid.org/calculators/savingsplanyield.phtml

Student Loan Advisor

The Student Loan Advisor provides you with an estimate of the amount of educational debt you can reasonably afford, given the expected starting salary for your major. This advisor is for Undergraduate students; links are provided for advisors for Master's and Doctoral students.
http://www.finaid.org/calculators/undergradadvisor.phtml

Tuition Savings Calculator

Enter the current annual tuition of your favorite institution and what you think your average tuition inflation and investment return will be. Then put in the years until your children go to school and how much you have already to invest and how much you will contribute each year.
http://www.interest.com/hugh/calc/tuition.cgi

Wealth Accumulation Calculator

Calculate how much you can save towards a financial goal based upon a certain savings amount per year. By leaving a field blank, one at a time, you can also find: What rate of return you need to realize your financial goals; at the rate you are saving, how much will you have at retirement and how much you need to save to reach your retirement goals.
http://www.prusec.com/financial_concerns/wlth_cal.htm

What's Missing Calculator?

This calculator finds the missing variable for a loan. If you know the payment, term and the loan amount it calculates the interest rate. If you know the payment amount, loan amount and the interest rate, it calculates the term.
http://www.interest.com/hugh/calc/missing.cgi

What's Your Yield?

Enter your starting balance, your ending balance, monthly contribution and number of years and find what monthly yield would be required.
http://www.interest.com/hugh/calc/yield.cgi

A Measure of Everything Else

The Abacus: The Art of Calculating with Beads

Explains the history and use of this ancient calculator. Site includes click and point abacus.
http://www.ee.ryerson.ca:8080/~elf/abacus/

The Age Calculator

Enter your birthdate and you'll see your age in years, weeks, months, days, hours, minutes and seconds and a countdown to how long til your next birthday.
http://www.mukil.com/english/script/age_calculator.htm

Alta Vista Translation Service

You provide either plain text or the address (URL) of a Web page to translate from English into French, Spanish, Portuguese, German or Italian or vice versa. For real fun, try translating something into a second language and then back again into the original language.
http://babelfish.altavista.com/translate.dyn

Amateur Radio RF Safety Calculator

Use this calculator to estimate power density in the main lobe of an antenna, with use of the EPA-recommended ground reflection factor as an option.
http://n5xu.ae.utexas.edu/rfsafety/

Arto's String Calculator

A page for calculating plain string tensions and diameters. Made with lute instruments in mind, it can be used for all stringed instruments: harpsichord, harp, viola da gamba, guitar, even grand piano.
http://www.cs.Helsinki.fi/~wikla/mus/Calcs/wwwscalc.html

Attic Insulation Calculator

Calculate energy savings with increased insulation. Click on the insulation you currently have and then the insulation you would like to add to see how much heat you could save.
http://www.warmair.net/html/insul_calc.htm

Baby Namer

Helps you pick the perfect name for your baby. Find a name by sex, ethnic origin, number of syllables and more.
http://www.babycenter.com/babyname/

Barcode Server

Fill in the field with a 12-digit number and it will generate a barcode for you, like those UPC things see on food, or the codes on CDs and tapes. Also has a link to a site which explains how barcodes work.
http://www.milk.com/barcode/

Bathroom Estimator

Use this Bathroom Estimator to get a ballpark figure how much it will cost to remodel your general bathroom type. Then drill down into each bathroom component, choose features and products you want, and see how it affects the bottom line.
http://www.improvenet.com/plan/estimate/Bathroom/be_index.html

Beer Recipator

A Beer Recipe Calculator. An interactive set of web pages that homebrewers can use to formulate their recipes online. Calculations for original gravity, color, and bitterness are all carried out on the same web page, much like a typical spreadsheet program.
http://hbd.org/recipator

The Biorythm Calculator

Enter your birthdate and press the Calc button for your physical, emotional and intellectual readings.[New URL]
http://www.wholistic.net/biorythm.htm

Birthdate Calculator

Calculates birthdate from death date and age of death in day-month-year format. [New URL]
http://web2.airmail.net/bhende19/b-date.htm

The Birthday Calculator

"Oh sure, anyone can calculate birthdays in terms of years. But--how many days old are you? What's that in hex? When will you be 2^31 seconds old? To answer these and other burning questions, there is--The Birthday Calculator!"
http://www.parc.xerox.com/csl/members/spreitze/bdc/

Board Feet Estimator

All rough lumber is sold by the number of board feet. To figure out how many board feet you must type in the dimensions of the wood in inches.
http://www.homeideas.com/applets/boardfeet.shtml

Boston Marathon Pace Calculator

This JavaScript calculator allows you to determine your pace per mile for the marathon given a desired finish time. The Boston Marathon is approximately 26.2 miles long.
http://www.100th.com/calculator/

Bowling Score Calculator

Keep track of your bowling game or virtually replay a previous game and find out what a difference making that spare in the fifth frame might have made.
http://www.csusm.edu/public/public_html/veres/

Calculation of the Ecclesiastical Calendar

Enter a year, get the days and dates for several Ecclesiastical celebrations during that year, including Easter and the movable celebrations related to it.
http://www.smart.net/~mmontes/ec-cal.html

Calendar Converter

This page allows you to convert dates among various calendar systems. Each date entered will be converted to:Gregorian calendar, Julian day, Julian calendar, Hebrew calendar, Islamic calendar, Persian calendar, Mayan calendar, Bahai calendar, Indian Civil calendar, French republican calendar and ISO-8601 Week and Day and Day of the Year. [New URL]
http://www.fourmilab.ch/documents/calendar/

Carbon Debt Calculator

This calculator will help you calculate the amount of carbon dioxide that your household is responsible for releasing into the air through energy use and other activities, and let you estimate your impact on global warming. [New URL]
http://www.lpb.org/programs/forest/calculator.html

Cat Age Calculator

Fill in your cat's current age and click the button to see your cat's age in human years.
http://www.hhforcats.org/calculator/calculator.asp

Cigar Calculator

Enter your preferences as to length of smoke, wrapper color, attributes and cost to find your ultimate Padron cigar.
http://www.portroyal-padron.com/calculator.html

Clothing Conversion Charts

Not a calculator, but ten different charts to help you convert U.S. and international clothing sizes.
http://fromto.as/clothing.htm

The Community Calculator

Helps you identify neighborhoods in other communities in the United States with lifestyles that match yours.
http://www2.homefair.com/usr/hoodform.html

Compare Furnace Efficiencies

This applet will determine how much money you will save (or spend) when purchasing a new furnace. Just plug in the old furnace efficiency rating (either known or estimated) and the efficiency rating of the new furnace you are planning on purchasing and you'll get the answer.
http://www.homeideas.com/applets/furnace.shtml

Concrete Estimator

This applet estimates the cubic yards of concrete needed for a given area.
http://www.goldenrulehardware.com/applets/concrete.html

Cooking Measures and Conversion Calculator

Sponsored by eGG (electronic Gourmet Guide), this site features a series of calculators for cooks who need to convert within or between British and American systems of measure.
http://www.foodwine.com/cgi-bin/hts?convcalc.hts

Cost of Carpeting Calculator

This applet will determine how much you will spend on carpeting given the dimensions of a room and the price of the carpet.
http://www.homeideas.com/applets/carpet.shtml

Crossword Helper

You enter the letters that are known in the corresponding boxes. Then select the length of the word and click the "Show Completions" button. All words of the specifed length with matching characters in the corresponding positions will be displayed.
http://24.2.81.10/fcgi-bin/complete.pl

Crypto Cracker

Crypto Cracker is a tool for cracking word ciphers, also known as cryptograms or cryptoquotes, a puzzle where one letter in the puzzle is substituted with another. Will also encrypt a phrase.
http://www.wordplays.com/crypto.html

Date and Time Gateway

Gives the current GMT date and time and you select from a comprehensive list of places around the world to see the date and time there.
http://www.bsdi.com/date

Day Count Calculator

This calculator will tell you the number of days between two dates.
http://www.timeanddate.com/date/duration.html

The Death Clock

" The Internet's friendly reminder that life is slipping away... second by second. Like the hourglass of the Net, the Death Clock will remind you just how short life is."
http://www.deathclock.com/

Depth of Field Calculator

Finds the near, far and hyperfocal distance for a specific lens. Enter the focal length (mm), aperature (f/number) and the object distance.
http://www.cs.ucla.edu/~simonw/DoF/

Dog Age Calculator

To find your dog's age in human years, to enter your dog's age and press the fetch button.
http://www.bowwow.com.au/calculator/index.asp

Dudak's Field-of-View Calculator

With this field-of-view calculator, you can calculate field of view and compare focal lengths of all the major film formats. You can also calculate focal length and focus distance. [New URL]
http://www.cs.ucla.edu/~simonw/fov/

Edison Lighting Calculator

Use the Edison Lighting Calculator to see how many fixtures your room will require. Just enter the information below and press Submit!
http://www.interlog.com/~mouled/LightCal.html

Fabric Calculator

Helps you figure out how much fabric you'll need to make a quilt. You enter the size of the quilt block, the number of blocks across and down and the width of the fabric. If you include the percentages of lights, mediums and darks you're planning, the calculator can give you the yardage by value.
http://search.quiltshops.com/calculator/calculator.htm

Fencing Estimator

This applet will determine how many posts are needed for a fencing project. Just plug in the area of fencing and spacing in feet between posts.
http://www.homeideas.com/applets/fence.shtml

Floor Tile Estimator

You enter the surface width and length of your floor, demensions of borders you'd like, if any, and the size of the tile. Click on "create a shopping list," which generates the number field and border tiles recommended to do the job.
http://www.homeideas.com/applets/tiles.shtml

Fuel Cost Comparisons

This calculator will estimate the cost associated with each type of fuel. You will need to know your local prices and the efficiency of your heating equipment, although estimates have been supplied. Adjust the numbers below to correspond to your particular situation.
http://www.warmair.net/html/fuel_cost_comparisons.htm

Gemstone Weight Calculator

Given the cut and dimensions of a stone, compute its weight in Carats. Optimized on over 1,000 gemstones.
http://www.dendritics.com/a-calcs.htm

Golf Handicap Calculator

Enter your last 5 scores along with the corresponding Course Rating and Slope Rating.
http://www.rangergolf.com/_handicaptemplates/golf_handicap1.htm

Great Circle Distance Calculator

This java applet calculates the Great circle distance between two points on the Earth's surface. Just enter the Latitude and longitude in degress, minutes and seconds of both points and click 'Calculate'
http://www.mercury.demon.co.uk/dist/dodist.html

High-Efficiency Fluorescent Lighting Cost Savings Calculator

This calculator lets you see how much you could save - dollars and energy - by using high-efficiency fluorescent lights instead of the old standard incandescent bulbs. Or, if you already use the fluorescent, you can find out how much you are already saving
http://www.sdearthtimes.com/ET_Lighting_Work.html

Hop Bitterness Calculator

Fill out the form to find out the estimated Bittering Units (BU) in your homebrew and click "Calculate." The Bitterness Calculator takes into account both the time of boil and the wort gravity during the boil.
http://realbeer.com/hops/IBU.html

How Far Is It?

You supply the name, zip code, or longitude and latitude of any two places in the world and you can find the distance between them (as the crow flies). This site will also provide a map showing the two places, if you wish.
http://www.indo.com/distance/

How Many Bricks Will It Take?

This calculator will help determine the most efficient brick for your job and calculate the total number of bricks you need.
http://www.canadabrick.com/calculators/course.html

How Much Insulation?

How much insulation do you need to puchase? To figure this out, enter the gross area to be covered (ie. the area of your ceiling) and the width of centers your home's framing is on.
http://www.homeideas.com/applets/insulation_area.shtml

How Much Fabric Calculator?

Use this calculator to figure out the amount of fabric needed for a cross stitch project. It can do the calculation in inches or centimeters.
http://cgi.dnai.com/~kdyer/cgi-bin/fabric_size.cgi

International Shoe Size Conversion Chart

Not a calculator, but a chart which helps you convert international shoe sizes. [New URL]
http://www.dancesport.uk.com/shoes/conchart.htm

Internet File Download Time Calculator

You enter the size of the file (KB, MB or GB) and the speed of your connection to find out how many hours, minutes, and seconds it will take to download the file. [New URL]
http://www.webcoord.unsw.edu.au/design/tools/netcalc.shtml

The Intoximeters Inc. Drink Wheel Page

The Drink Wheel is a form that you can fill out that will compute your estimated blood/breath alcohol concentration ("BAC") based on your information.
http://www.intox.com/Drink_Wheel.html

Irresponsible Internet Statistics Generator

This page generates an (irresponsible) prediction about how many sites and how many people there will be on the Web on some date in the future.
http://www.anamorph.com/docs/stats/stats.html

Kitchen Estimator

Use this calculator to get a ballpark figure how much it will cost to remodel your general kitchen type. Then drill down into each kitchen component, choose features and products you want, and see how it affects the bottom line.
http://www.improvenet.com/plan/estimate/Kitchen/kp_index.html

The Longevity Game

Play The Longevity Game and calculate how long you can expect to live based on life insurance industry research.
http://www.northwesternmutual.com/games/longevity/

Lumber Cost Estimator

Use this calculator to estimate the lumber costs for your next project.
http://www.bhglive.com/homeimp/docs/lmbrcalc.htm

Majestic Mountain Sage Lye Calculator for Creating Soap Formulas

This is a tool for soapmakers to create new soap recipes. The Lye Calculator will calculate the amount of lye (either sodium hydroxide or potassium hydroxide) required to convert the specified amount of fats and oils to soap.
http://www.the-sage.com/services/calculator.html

Mayan Date Calculator

This calculator will give a long count, calendar round, and night god for any date from 1903 onwards.
http://www.halfmoon.org/date.html

Mediarama's Hex Converter

Converts RGB values from paint programs into Hex for homepage design.
http://www.inquisitor.com/hex.html

MegaConverter 2

Unique interface calculates a diverse range of unit conversions between both modern (metric, U.S., British, etc.)and ancient measuring systems. Also includes a variety of other conversions: hardware nails, numbers in the millions and billions and zillons, typography, weight in space, kitchen measures and much, much more.
http://www.megaconverter.com/mega2/

META GPA Calculating Spreadsheet

Creates a custom GPA calculator appropriate for your institution's grading system. Fill in the letter grades and their corresponding values and click "Make the GPA Calculator." From UC Berkeley's Academic Achievement Division.
http://www.aad.berkeley.edu/Meta-GPACalc.html

Morse Code Translator

You type in the text you'd like translated into code and push the button. From the Boy Scouts of America.
http://info1.scouting.nl/morse/morseform.html

Moving Cost Calculator

Use this calculator to estimate interstate or local moving cost in the United States. Step 1 is to pick states, step 2 is to pick cities and list furnished rooms.
http://www2.homefair.com/calc/movecalcin.html

Office Space Calculator

Two methods of calculating your office space needs are provided. The first is based on general rules of thumb. The second goes into greater detail and is more accurate. Using both methods will provide you with a range of your probable requirement. The results are presented in terms of usable square footage. [Select this option from the menu on the left.] [New URL]
http://www.officefinder.com/officespacecalc.html

Paint Calculator

You enter the room dimensions (wall height, room perimeter and ceiling area), the dimensions of doors and windows, if you plan to use a primer and the number of coats you'd like to use.
http://www.metlife.com/Lifeadvice/Tools/Paintcalc/index.html

Paper Sizes

Although this site does not have a calculator, it does deal with measures. Specifically, the measurements of sheets of paper. It features history of paper sizes and charts which show standard U.S. and European paper sizes.
http://www.ArchiveBuilders.com/aba006.html

Quad Antenna Calculator

The Quad Antenna Calculator will give you specific measurements and instructions to construct a Quad Antenna for a given frequency. You simply fill in the box with the frequency and it calculates such details as length of each side of quad total length of elements, spacing between each element and details for construction. This calculator is of interest to all Radio Amateurs.
http://www.softcom.net/users/kd6dks/quad.html

Quarterback Passer Rating Calculator

Fill in the number of attempts, completions, passing yards, touchdowns and interceptions and the quarterback passer rating will be figured for you.
http://www.primecomputing.com/javaqbr1.htm

Roof Calculator

To determine how many roofing squares you need for your project, click the blue button and enter the measurements of your roof—rounded to the nearest foot—into the pop-up calculator.
http://www.improvenet.com/plan/calc/roof.html#

Search the FLfT Pages

Search the Foreign Languages for Travelers Pages for a particular word or phrase to be translated into all 30 of the languages FLfT covers. The searches are case-insensitive and you can enter a word in any language. Wildcards (*) and Boolean searches are allowed.
http://www.travlang.com/languages/search.html

Smoke Density Calculator

This calculator computes diesel soot density from smoke opacity.
http://www.dieselnet.com/calculator/smoke1.html

The Sock Calculator

Calculates instructions for knitting a pair of socks. Supply the gauge you'd like, enter a series of measurements and decide whether you'd like to hand or machine knit and the directions will be supplied.
http://www.panix.com/~ilaine/socks.html

Sweater Machine

The Sweater Machine will create a pattern for a completely seamless, knit, sweater/jumper in the size you choose, using the gauge you specify.
http://www.apocalypse.org/pub/u/liz/sweater.html

This to That (Glue Advice)

Choose what you'd like to glue to what (fabric, wood, plastic, paper, glass, etc.) and they'll recommend the glue to use.
http://www.thistothat.com/

Timezone Converter

Specify the time zone, time and date to convert from, and the time zone to convert to.
http://sandbox.xerox.com/stewart/tzconvert.cgi

Turbo! Tire Size Calculator

Use this customized tire size calculator to compare your current tire size to a new and different size tire, or any two tire sizes you might think of (within reason).
http://secret-secret.com/turbo/DIY/tirecalc/turbotire.html

USPS Domestic Rate Calculator

United States Postal Service calculator that helps you figure out how much it will cost to mail that letter or package. There is a link on this page to an international rate calculator, as well.
http://postcalc.usps.gov/

Virtual Mexico Mall -- Mileage Calculator

Click on any two city names with red dots on this map of Mexico to see the driving distance between the two cities.
http://virtualmex.com/mileage.htm

Wallboard Estimator

This applet estimates the number of wallboard needed to cover a wall using the perimeter of a room. The program assumes 8 foot ceilings and also can take into account the doors, windows, and/or fireplaces.
http://www.homeideas.com/applets/wallboard.shtml

Wallpaper Calculator

You enter the room dimensions (height of walls and room perimeter) and dimensions of all doors and window in the room. The calculator does the rest.
http://www.metlife.com/Lifeadvice/Tools/Wallpapercalc/index.html

Water Consumption Calculator

Enter the details about your household's water usage to calculate your total water consumption in terms of litres per week and cubic metres per year. [New URL]
http://www.provwater.com/conscalc.htm

Water Softener Estimator

This applet estimates the amount of softening power required in order to reduce the hardness in your water. You enter details about your water usage and the hardness of your water.
http://www.homeideas.com/applets/softener.shtml

"What Fabric Count" Calculator

Determine how big a cross stitch project would be on different fabric counts.
http://cgi.dnai.com/~kdyer/cgi-bin/project_size.cgi

Wheat Seeding Rate Calculator

Use this calculator to decide how much seed you need to plant to obtain the desired plant population and calibrate your seeder.
http://www.agric.gov.ab.ca/crops/wheat/seedwhea.html

Window and Door Estimator

This applet calculates the square feet of "Openings" (windows and doors) for each room.
http://www.homeideas.com/applets/openings.shtml

Window Upgrades

Calculate energy savings with various window replacements.
http://www.warmair.net/html/window_upgrades.htm

Word Frequency Indexer

Create a frequency index, or 'word list', of any text. Just paste or type in your text and select the sort order you'd like.
http://www.georgetown.edu/cball/webtools/web_freqs.html

Word Jumbles

Helps you unscramble words with up to 25 characters.
http://24.2.81.10/fcgi-bin/jumble.pl?option=jumble

Word Morphs

You enter a word and the computer will come up with a list of words differing from the original word by one letter.
http://24.2.81.10/fcgi-bin/offbyone.pl

Words In a Word

You enter a word and the computer will come up with a list of words that can be made up from those letters.
http://24.2.81.10/fcgi-bin/jumble.pl

Yard/Meter and Ounce/Gram Converters

Converts between meters and yards and ounces and grams.
http://www.benefitslink.com/cgi-bin/fiberlinkmanager/measurement_converter.cgi

Your Name in Japanese

Type in your English name and it will translate your name into Japanese.
http://www.geocities.com/Tokyo/Ginza/3379/japname.html