Age calculator

Calculate your exact age.

Enter a birth date to get age in calendar years, months, days, and total days lived.

Context and perspective

Your birth year at a glance

A quick view of your birth year, decade, and generation. Open any overview for more detail.

How does the age calculator work?

It compares your birth date with today using calendar years, months, and days, then also counts total elapsed days.

Is my birth date stored?

No. The calculation runs in your browser and does not send your date anywhere.

More date tools

Find out how old someone was on any past date. Perfect for anniversary lookups, historical research, and milestone tracking.

What generation are you? Enter any birth year to see your generation label (Greatest Gen through Gen Beta), year range, and description.

What percentage of an 80-year life have you already lived? Get your life percentage, remaining years, and a simple visual. Private and instant.

Find your Western zodiac sign, Chinese zodiac animal, and modern birthstone from your birth date.