Age calculator by date of birth
Exact age in years, months and days. Plus the total number of days and the date of the next birthday.
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How to use
- STEP 1
Enter the date of birth.
- STEP 2
Optionally change the date to calculate at: today by default.
- STEP 3
See the age in years, months, days and the total number of days.
FAQ
- How is age in months and days calculated?
- Full years first, then full months, then the remaining days. Leap years and different month lengths are taken into account.
- Can I find the age difference between two people?
- Yes, enter the second date of birth in the Compare with field and the calculator shows the difference.
- Where does my data go?
- Nowhere. The tool runs entirely in your browser: the page loads once, then everything is calculated on your device. You can go offline and it keeps working.
- Is it free and without registration?
- Yes. No accounts, no limits and no watermarks on the result.