How to use Age Calculator
- Enter the date of birth.
- Leave the second date as today, or choose another date.
- Read the age, total days and the countdown to the next birthday.
About this tool
The calculator counts complete years, then complete months and the remaining days, the same way age is normally stated. It also shows the total number of days, weeks and months lived, and the weekday you were born on.
People born on 29 February have their birthday shown on 28 February in non-leap years.
Frequently Asked Questions
- How is age calculated?
- By subtracting the birth date from the chosen date, borrowing days from the previous month when needed.
- Can I calculate age on a past or future date?
- Yes. Change the second date to any date after the birth date.
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