Calculate age
Enter a birth date to calculate the exact age today — or as of any reference date — in years, months and days, plus the total number of days. The result is stored privately in your account.
No sign-up needed — runs instantly in your browser.
How it works
- 1Enter the birth date
- 2Optionally set a reference date, then press Run
- 3Download the result or find it in your files
Frequently asked questions
- What date format should I use?
- Use YYYY-MM-DD, e.g. 1990-05-17; other common date formats are accepted too.
- Can I calculate age at a past or future date?
- Yes — set a reference date; leave it blank to use today.
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