What is the Age Calculator?
Enter a date of birth to see the exact age today, or on any other date: for an exam form, a job application, a school admission cut-off or a pension. The calculator counts calendar months properly, so month ends and leap years are handled the way people expect.
You also get the age in total months, weeks, days and hours, the weekday you were born on, the date and weekday of your next birthday with a countdown, and your zodiac sign.
How to use it
- Enter the date of birth.
- Leave “Age on” as today, or pick another date such as an exam cut-off date.
- Read the exact age in years, months and days.
- See the totals, the weekday of birth and the next birthday countdown below.
Example
Born 15 May 1990, age on 6 October 2026
36 years, 4 months and 21 days · Born on a Tuesday
Features
- Exact age. Years, months and days, counted on the calendar.
- Age on any date. Check eligibility for exams, jobs or admissions on a cut-off date.
- Totals. Age in months, weeks, days and hours.
- Next birthday. Date, weekday and a countdown to your next birthday.
- Leap years handled. Born on 29 February? Your birthday falls on 28 February in other years.
- Private. Dates are worked out in your browser and never sent anywhere.
Frequently asked questions
How is age calculated in years, months and days?
First the full years since birth are counted, then the full months after that, then the remaining days. If adding months lands on a day that does not exist (like 31 February), the last day of that month is used.
How do I calculate age on a specific date?
Change “Age on” to the date you need, for example the cut-off date in an exam notification. The result shows your age on that date.
What if I was born on 29 February?
In years without 29 February, this calculator treats 28 February as your birthday. Some organisations use 1 March instead, so check their rules if it matters.
Can I use it to find the time between two dates?
Yes. Put the earlier date as the date of birth and the later one as “Age on” to get the years, months and days between them.
Last updated · Free, no sign-up, runs in your browser.