Calculate age from date of birth

How to use the Age Calculator

1. 1Enter the date of birth.
2. 2Change the 'Age on' date if needed.
3. 3Read the result.

Supported formats and limits

• Birthdays on the 29th–31st count from the last day of shorter months.
• Uses your device's calendar.

Common uses

• Checking age eligibility on forms.
• Working out age on a past date.

Frequently asked questions