Calculate Your Age from Your Date of Birth
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The short answer
Enter your date of birth and the tool shows your age in years, months and days, the total days you have lived and the days left to your next birthday. It uses today's date from your device, so the answer is right on the day you open it.
Change this to an exam's cut-off date to check eligibility.
Everything runs in your browser. What you type is not sent anywhere.
How to: Calculate Your Age from Your Date of Birth
- 1Enter your date of birth.
- 2Leave the 'age on' date as today.
- 3Read your age in years, months and days.
- 4Check the extra lines for total days and the next birthday.
At a glance
- Shows
- Years, months and days; total weeks and days
- Also
- The weekday you were born and days to your next birthday
- Privacy
- Your date of birth stays on your device
Frequently asked questions
How is the age counted when I was born on 29 February?
In years that have no 29 February, the tool counts your birthday on the last day of February, so the age in months and days stays sensible.
Can I use this for a form that asks for age on a certain date?
Yes, use the age-on-a-date page. It lets you set any date, such as 1 August of the exam year, and shows your age on that day.
More quick answers
- Calculate Your Age on a Specific Date
- Calculate Your Age in Days, Weeks and Months
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