How precise is the age shown?

Exact to the day — it accounts for leap years and different month lengths rather than a rough 365-day estimate.

Can I calculate age as of a date in the past or future, not just today?

Yes — change the "As of date" field to any date; it defaults to today but is not limited to it.

No — the calculation runs entirely in your browser; your date of birth is never sent to a server.

Find your exact age in years, months and days from your date of birth.

Date of birth

As of date

26 years, 8 months, 17 days

9757 total days · 1393 weeks · 320 months

1
Enter your date of birth
Use the date picker.
2
Enter the "as of" date
Defaults to today, but you can pick any past or future date.
3
Read your exact age
Years, months and days, plus total days lived, are shown instantly.

How precise is the age shown?: Exact to the day — it accounts for leap years and different month lengths rather than a rough 365-day estimate.
Can I calculate age as of a date in the past or future, not just today?: Yes — change the "As of date" field to any date; it defaults to today but is not limited to it.
Does this tool store or send my date of birth anywhere?: No — the calculation runs entirely in your browser; your date of birth is never sent to a server.