What is an Age Calculator?
An Age Calculator works out your exact age in years, months and days from your date of birth, along with total days lived and the date of your next birthday.
You can also find your age on any other date, which helps with exam forms, job applications and government schemes that set an age limit on a cut-off date.
How to use the Age Calculator
- Enter date of birth.
- Tap Calculate to see the result.
- Tap Reset to clear the fields and try again.
Who should use it
- Students and job seekers filling in forms with age limits
- Parents checking a child’s age for school admission
- Anyone curious about how many days they have lived
Key terms
- Date of birth
- The day you were born.
- Age on date
- The date to measure your age on. Leave it blank to use today.
Frequently asked questions
How do I find my age on a cut-off date?
Enter that date in the second field and tap Calculate.
Does it count leap years?
Yes. It uses the real calendar, so leap years are counted.
Is my birth date saved?
No. It stays on your device.
Last updated: 1 November 2026