Calculate your exact age online free with SavyTools’ age calculator, which works out your age in years, months, and days, including leap years. If you want your exact age in years months and days for a form, a milestone, or just curiosity, the tool also shows fun stats like your total days alive and a countdown to your next birthday — and your date of birth never leaves your browser.
Everything runs in your browser. Your date of birth is never sent to a server or stored anywhere.
How to Use
- Enter your date of birth in the calculator at the top of this page.
- See your exact age in years, months, and days as of today.
- Check the extra stats, such as your total days alive and hours lived.
- See the countdown to your next birthday.
Frequently Asked Questions
How is my age calculated?
It is the calendar difference between your date of birth and today’s date, worked out in full years, then remaining months, then remaining days, with leap years handled correctly.
Does timezone matter?
The calculator uses your device’s local date, so the result matches the date where you are. If you check just after midnight, the result may differ by a day from someone in another timezone.
Can I calculate my age on a different date?
This calculator gives your age as of today. If you need your age on a past or future date, work out the difference from today’s result, or use the same date maths for that date.
Tips
Double-check the date of birth you enter, since a single wrong digit changes the whole result. For official forms, the figure that usually matters is your age in completed years, which the calculator shows first. The extra stats, like total days and the next birthday countdown, are there for interest rather than for forms.
Also try our Percentage Calculator tool for quick everyday percentage maths.