Age calculator

What the result means

Age in years, months and days uses calendar months, not a 30-day fiction. 29 February birthdays use 28 February in non-leap years.

How it is calculated

Calendar span from birth to the chosen date, then next anniversary

• On: Often today, but you can pick any date.

Years, months and leftover days match the date-difference calendar span.

Worked example

Born 15 January 1990, age on 19 August 2026

Default example.

Years

36

Next birthday

15 January 2027

Change the “on” date to a school cutoff or a visa day if you need age on that day.

Not a legal age test

Licensing, voting and award junior rates can use different “age on this date” rules. This is a civil-calendar age.

Questions