Utility Calculatrices

Calculate time differences and durations

Calculate dates and days between dates

Count days between two dates

Trouver le jour de la semaine pour n'importe quelle date

Determine day of week for dates

Calculate time duration between events

Calculate work hours and time card totals

Convert times between time zones

Calculate total hours and minutes

Calculate optimal sleep schedules

Calculate age from birth date

Convert and calculate height measurements

Convert weight units and measurements

Calculate grade point average

Calculate final grades and percentages

Find your bra size with proper measurements

Convert shoe sizes between different countries

Convert between various units of measurement

Convert numbers to and from Roman numerals

Calculate electrical power and consumption

Calculate voltage drop in electrical circuits

Calculate voltage, current, resistance using Ohms Law

Calculate resistor values and color codes

Calculate BTU for heating and cooling

Calculate horsepower from torque and RPM

Estimate engine horsepower

Calculate molarity of solutions

Calculate molecular weights of compounds

Calculate density from mass and volume

Calculate mass from density and volume

Calculate heat index from temperature and humidity

Calculate dew point temperature

Calculate wind chill from temperature and wind speed

Predict the likelihood of school closures due to snow

Calculate fuel costs for trips

Calculate gas mileage and fuel efficiency

Calculate distance traveled and mileage

Convert tire sizes between formats

Calculate speed, distance, and time

Calculate concrete needed for projects

Calculate gravel and stone material amounts

Calculate mulch needed for landscaping

Calculate tiles needed for projects

Calculate roofing materials needed

Calculate stair dimensions and rise/run

Calculate square footage of areas

Calculate tips and splits for meals

Fun compatibility calculator

Calculate golf handicap

Roll virtual dice

Generate secure passwords

Find the statistical probability of your ideal partner

Calculate mix profits and effects for the game Schedule I

Rate yourself and discover your attractiveness grade

Calculate GDP and economic indicators

Calculate IP subnet masks and ranges

Calculate bandwidth and data transfer

Silca-style optimal tire pressure for cycling

Calculate fabric and cutting measurements for circle skirts