What you can use it for
- Checking age for school admission or job applications.
- Finding out how many days until the next birthday.
- Calculating the age of a child in months.
The calculator runs in your browser and does not store your date of birth.
Frequently asked questions
How does the age calculator work?
It counts full years and months between the two dates, then the leftover days. Month lengths and leap years are taken into account.
Can I find the age on a past or future date?
Yes. Change the second date to any day, such as a job application deadline or a school cut-off date.
Why does the day count differ from years x 365?
Because leap years add an extra day roughly every four years, so total days are slightly higher than years multiplied by 365.