Age Calculator

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

Read the guide: How to Calculate Your Exact Age

How it works

  1. 1

    Enter your birth date

    Pick your date of birth from the calendar.

  2. 2

    See your exact age

    View your age in years, months and days.

  3. 3

    Explore the totals

    See your age expressed in weeks and total days too.

Instant & 100% private — nothing is uploaded

Every calculation runs locally in your browser. The measurements, dates and details you enter stay on your own device and are never sent to a server — nothing is stored, logged or shared.

Frequently asked questions

How is the age calculated?
It counts the full years, months and days between your birth date and today, handling different month lengths and leap years correctly.
Can I use it for any date?
It works for any past date of birth. It is handy for working out exact ages for forms, milestones or just curiosity.
Is my data sent anywhere?
No. Every calculation runs in your browser. The measurements you enter are never uploaded, logged or stored, and they reset when you close the tab.