Age Calculator
Find your exact age in years, months and days. Enter a date of birth and this age calculator also shows your age in months, weeks, days and hours, the day of the week you were born, and how many days are left until your next birthday.
- Years, months, days
- Next birthday countdown
- Age on any date
- No sign-up
How to use
- Enter your date of birth (or anyone else’s).
- Leave "Age at the date of" as today, or pick another day to see an age in the past or future.
- Read your age in years, months and days, and the totals in months, weeks, days and hours.
- Check how many days remain until the next birthday.
How age is calculated
Age is the number of full years, then months, then days between the birth date and the chosen date. If the day of the month has not been reached yet, one month is borrowed from the total, as on a calendar. People born on 29 February celebrate on 28 February in non-leap years in this calculator.
Why use exact age?
Forms, school cut-off dates, insurance and sports leagues often need an exact age on a specific day. Use "Age at the date of" to check it. To count the time between two other dates, try days between dates.
Frequently asked questions
How do I calculate my age?
Subtract the birth date from today’s date in years, months and days. This calculator does it for you the moment you enter a date.
Can I find an age on a past or future date?
Yes. Change "Age at the date of" to any date after the birth date.
How are leap days handled?
A 29 February birthday counts as 28 February in years without a leap day.
Is the date of birth stored?
No. Everything is calculated in your browser and nothing is sent or saved.