How to calculate your age
- Enter your date of birth.
- Optionally change the Age on date to find your age on a specific day.
- See your exact age, total days lived and how long until your next birthday.
About the Age Calculator tool
Need your exact age for a form or application, or just curious? The calculator counts complete years, months and days between two dates, correctly handling leap years and months of different lengths. You can also use it to find the age of a person, a pet or even a building on any date.
100% free
No limits, no watermarks and no sign-up.
Private
Results are estimates for information only, not financial advice.
Fast
No uploading or waiting in a queue. Results in seconds.
Works everywhere
Windows, Mac, iPhone, Android and Chromebook.
Frequently asked questions
Does it count leap years?
Yes. Every leap day is included, so the totals in days and weeks are exact.
What if I was born on February 29?
In years without a February 29, your next birthday is shown as March 1.
Can I find someone's age on a past or future date?
Yes. Change the Age on date to any day you like.
Is my birth date stored?
No. The calculation happens in your browser and nothing is saved or sent.