Age Calculator | Years, Months & Days

Age Calculator

The Age Calculator works out your exact age from your date of birth — in years, months and days, not just whole years. That is useful when a form, an admission notice or a job advertisement asks for your age on a particular date, or when you want to know how old you are today down to the day. Type in your date of birth and the calculator gives you the result at once. It handles leap years correctly, so a birthday on 29 February is counted properly, and it works for any past date. It is free and runs entirely in your browser, and your date of birth never leaves your device.

How to use it

1. Tap the date field and pick your date of birth from the calendar, or type it in.
2. Tap "Calculate Age".
3. The result shows your age as years, months and days — for example "Age: 26 years, 10 months, 7 days".
4. To check a different date, change the date of birth and tap the button again. A future date is rejected with a message.

Worked example

Date of birth 1 January 2000, checked on 8 November 2026: the tool shows "Age: 26 years, 10 months, 7 days". (The result depends on today's date, so it changes by one day each day.)

Frequently Asked Questions

Q: Does the calculator handle leap years?
A: Yes. It counts calendar months properly, so leap days and months of different lengths are all handled, including birthdays on 29 February.

Q: Why does my age change from one day to the next?
A: Because the result counts days as well as years. Your age in years stays the same between birthdays, but the months and days keep counting.

Q: Is my date of birth stored anywhere?
A: No. The calculation runs in your browser and nothing you type is sent or saved.

Also see: Scientific Calculator · VU Deadline Tracker · Solved MCQs by course.