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How to Calculate Your Exact Age

To calculate your exact age, enter your date of birth into an age calculator and it returns your age in years, months and days as of today, accounting for leap years automatically.

Last updated: 2026-07-17

The easy way

  • Enter your date of birth in the Age Calculator.
  • It returns your exact age in years, months and days as of today.

Why doing it by hand is fiddly

Months have different lengths and leap years add a day every four years, so subtracting dates in your head is error-prone. A calculator handles all of that automatically.

Counting between any two dates

Need the gap between two arbitrary dates — a project timeline, a countdown, days until an event? The Date Difference Calculator counts the exact days, weeks and months between any start and end date.

Common uses

  • Filling in forms that ask for exact age.
  • Working out eligibility by age or length of service.
  • Counting down to a due date, deadline or anniversary.

Private

The calculation runs in your browser — your dates aren't sent anywhere.

Frequently asked questions

Does the age calculator account for leap years?

Yes — it uses real calendar dates, so leap years and varying month lengths are handled automatically for an exact result.

Can I find the time between two specific dates?

Yes — use the Date Difference Calculator to count the exact days, weeks and months between any two dates.

Tools used in this guide

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