Age Calculator
Age Calculator works out your exact age in years, months and days from a date of birth, and also shows totals in months, weeks and days. Pick a date and get the answer instantly.
🔒 The calculation runs entirely in your browser.
How to use Age Calculator
- Enter a date of birth.
- Optionally change the “age at” date (defaults to today).
- Read your exact age and totals.
Frequently asked questions
How is the age calculated?
It counts complete years, then remaining months, then remaining days up to the target date — the standard calendar method.
Can I calculate age on a future or past date?
Yes. Change the second date to compute age as of any day.
Is my date of birth stored?
No. The calculation runs entirely in your browser.
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