How does the age calculator work?

It compares the birth date with the selected date and returns completed years, months, days, total days, and days until the next birthday.

Can I calculate age for a past date?

Yes. Change the as-of date to calculate age on a historical date.

Is the calculation done online?

The calculation runs in your browser and does not require an account.

Everyday calculator

Age Calculator

Calculate exact age in years, months, and days. This is a simple evergreen calculator modeled after the high-demand calculator pages that bring repeat search traffic.

Date of birth

Age on this date

Years-

Months-

Days-

Total Days-

Next Birthday In-

Common age calculator uses

People use an age calculator for school forms, insurance paperwork, birthday planning, eligibility checks, and quick date math. It is also a strong evergreen search topic for a tools site.

For more utilities, try the Percentage Calculator and Word Counter.