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Age, date, time, grade, and conversion tools
Calculate your exact age in years, months, and days
Add or subtract days from a date
Add, subtract, or convert time units
Calculate total hours worked
Calculate your Grade Point Average
Calculate course grades
Convert height units
Find your bra size
Generate secure random passwords
Simulate rolling dice
Convert between units of measurement
Calculate fuel costs for trips
Calculate voltage drop in wires
Calculate BTU for heating and cooling
Calculate area in square feet
Calculate total hours worked from time cards
Convert between time zones
Calculate love compatibility percentage
Calculate Gross Domestic Product
Calculate fuel efficiency
Calculate horsepower from torque
Estimate engine horsepower
Calculate stair dimensions
Calculate resistor color codes
Calculate voltage, current, and resistance
Calculate electricity costs
Convert shoe sizes between regions
Calculate tip and total bill
Calculate distance traveled
Calculate density of materials
Calculate mass from weight and gravity
Convert between weight units
Calculate speed, distance, or time
Calculate molarity of solutions
Calculate molecular weight of compounds
Convert between Roman numerals and numbers
Calculate golf handicap
Calculate sleep cycles and wake time
Compare tire sizes and dimensions
Calculate roofing materials needed
Calculate tiles for flooring or walls
Calculate mulch needed for gardens
Calculate gravel needed for projects
Calculate wind chill temperature
Calculate heat index from temperature and humidity
Calculate dew point temperature
Calculate data transfer rates
Encode and decode Base64 strings
Encode and decode URLs
Calculate duration between times
Count days between dates
Find the day of the week for a date
Calculate IP subnet ranges and CIDR notation
Calculate concrete volume and cost
Enter your date of birth into the Age Calculator. It instantly tells you your age in years, months, days, and even hours, including the exact day you were born.
Use the Hours Calculator or Time Card Calculator to add up your clock-in and clock-out times, including breaks, and get your total hours worked and pay for the week.
Use the Conversion Calculator to convert length, weight, temperature, volume, and more. EachTools also offers dedicated calculators for mass, height, speed, and other specific units.
Enter your course credits and letter grades into the GPA Calculator. It computes your grade point average on a standard 4.0 scale with a detailed breakdown.