How is the age calculated?

By calendar, not by dividing days by 365. We step forward from your birth date month by month, clamping at month ends, so a 31st-of-the-month or 29 February birth date comes out right.

What happens if I was born on 29 February?

In a non-leap year your birthday is treated as 28 February for the countdown. The age itself is exact either way.

Is my date of birth stored?

No. The calculation runs entirely in your browser.

Free tool

Age Calculator

Your exact age in years, months and days - plus total days lived, the weekday you were born on, and your next birthday.

Date of birth

Runs in your browser. Nothing is saved, no signup needed.

Frequently asked

How is the age calculated?: By calendar, not by dividing days by 365. We step forward from your birth date month by month, clamping at month ends, so a 31st-of-the-month or 29 February birth date comes out right.
What happens if I was born on 29 February?: In a non-leap year your birthday is treated as 28 February for the countdown. The age itself is exact either way.
Is my date of birth stored?: No. The calculation runs entirely in your browser.

Astroniq AI astrologer

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