Calculator
Age Calculator
Choose a date of birth and an as-of date to see the exact age.
Processed in your browser. The text is not sent to our servers.
How to calculate an age
- Choose the date of birth.
- Choose the as-of date. It starts as today.
- Click Calculate and read the years, months, and days.
The count follows the calendar. A birth date of 15 January 2000, as of 18 October 2026, is 26 years, 9 months, and 3 days.
Frequently asked questions
What if the birthday has not happened yet this year?
The year count stays one lower until the birthday, and the months and days make up the rest.
Are the dates uploaded?
No. The calculation runs in your browser.
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