Calculate Your Age
Required
Leave blank to use today's date
Age Calculator
Work out your exact age—years, months, days—from your date of birth to any given date. Simple, accurate, and mobile-friendly.
How to use the Age Calculator
- Enter your Date of birth.
- Optionally set an As of date. Leave it empty to use today.
- Select Calculate to see your exact age in years, months, and days.
Examples
- Born 14 Feb 1998, as of today → shows exact years, months, days, total days and hours.
- Born 29 Feb 2004, as of 1 Mar 2025 → leap years are handled correctly.
- To check a past milestone, set As of to that date and calculate.
Notes
- If you leave As of blank, the tool uses today’s date.
- Leap years and different month lengths are accounted for.
- Times are not required. Results are based on dates only.
- You can share or download a result card after calculating.
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Quick FAQ
How accurate is the result?
The calculator finds the exact difference between the two dates and includes leap years.
Can I choose any end date?
Yes. Set any date in the As of field. Leave it empty to use today.
What about 29 February birthdays?
Leap day birthdays are handled. On non-leap years, the next birthday is the most appropriate adjacent date.