Age Calculator

Calculate age or the difference between two dates in years, months and days.

100% private — runs entirely in your browser. Your data is processed on your device and never sent to the internet.

About the Age Calculator

This free age calculator works out an exact age (or the difference between any two dates) in years, months and days, and also shows the total number of days and weeks.

Use a date of birth with today's date to get an age, or any two dates to measure a duration. It runs in your browser — nothing is uploaded.

How to use it

  • Pick the start date (e.g. a date of birth)
  • Pick the end date (defaults to today)
  • Read the result in years, months and days, plus totals

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