Calculator Tools
Free Online Age Calculator
Enter your date of birth to instantly calculate your exact age in years, months and days — plus total days lived and your next birthday countdown.
How to use the age calculator
- Select your date of birth in the first field.
- Leave "Calculate age on" as today, or pick another date to see your age on a specific day.
- Click "Calculate age" to see your exact age in years, months and days.
- Scroll the results to see total days lived and a countdown to your next birthday.
Example
If your date of birth is 15 March 1995 and today is 29 July 2026, the calculator returns 31 years, 4 months, 14 days, along with the total number of days and weeks you've been alive, and how many days remain until your next birthday.
Why use an online age calculator?
Manually counting years, months and days between two dates is easy to get wrong — especially around leap years and months of different lengths. This free age calculator handles the date math for you, giving an exact breakdown instantly for forms, applications, eligibility checks, or simple curiosity.
Accurate and private
The calculation runs locally in your browser the moment you click "Calculate age" — your date of birth is never transmitted or stored anywhere, making this a safe way to check age details for yourself or someone else.
Frequently asked questions
The calculator finds the full years, months and remaining days between your date of birth and the selected reference date, accounting for different month lengths and leap years.
Yes. Change the "Calculate age on" field to any date to see age as of that day, not just today.
No. The calculation runs entirely in your browser and your date of birth is never sent to a server.
Total days and weeks lived are shown as an additional, fun way to look at your exact age.