Age Calculator
Find the age in years, months and days between two dates.
Everyday life
4 free tools
Everyday life calculators
Quick tools for dates, units, and everyday details.
Calculate age or the difference between two dates, convert measurements, or split a bill among several people. Each page explains its counting or conversion method so you can interpret the result and avoid ambiguity.
Date Difference Calculator
Count the days and weeks between a start date and an end date.
Everyday life
Unit Converter
Convert units of length, mass, temperature and volume.
Everyday life
Tip and Split Bill Calculator
Add a tip and split the total bill equally.
Everyday life
Before you start
- Age and date calculators use the Gregorian calendar and explain any option to include an endpoint.
- Units must be compatible: convert length to length and mass to mass.
- When splitting a bill, rounding may require a small adjustment to the amount each person pays.