Age Calculator
Calculate your exact age in years, months and days from your date of birth, plus total weeks and days lived and the countdown to your next birthday.
This tool runs entirely in your browser.
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How to use the Age Calculator
- 1Enter the date of birth.
- 2Optionally change the “age on” date (defaults to today).
- 3Read the exact age and extra stats.
What is the Age Calculator?
Age is counted in whole calendar months, then remaining days, so someone born on 31 January is one month old on 28 (or 29) February. Leap-day birthdays are celebrated on 28 February in non-leap years.
Frequently asked questions
Is my birth date stored?
No. The calculation runs in your browser; nothing is saved or sent.
Is the Age Calculator free and private?
Yes. The Age Calculator is free, needs no account, and runs entirely in your browser. What you type is never sent to a server or stored.
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