How to Use the Age Calculator

Fill in the fields above and click calculate. All calculations run instantly in your browser — no data is sent anywhere.

Frequently Asked Questions

How is the age calculated?

Age is computed from your date of birth to today, accounting for different month lengths and leap years precisely.

What does total days mean?

The exact number of calendar days between your birth and today — useful for legal, scientific, or insurance contexts.

How many days until my next birthday?

The calculator automatically finds your next birthday and shows exactly how many days away it is.