About this tool
The Age Calculator works out the exact time between your date of birth and today — or any date you choose — in years, months and days, correctly accounting for different month lengths and leap years. It also shows your age in total months, weeks and days, and counts down the days to your next birthday.
How to use
- 1Enter your date of birth.
- 2Optionally change the 'age at' date.
- 3Read your exact age and next birthday countdown.
Benefits
- Exact years, months and days.
- Handles leap years correctly.
- Next-birthday countdown included.
Frequently asked questions
Does it account for leap years?+
Yes. It uses real calendar dates, so February 29 and leap years are handled correctly.
Can I calculate age at a past date?+
Yes. Change the second date to any day to find the age at that moment.