Tokkucal
Age Calculator
Get your precise age in years, months and days, plus total days, weeks and months lived, and a countdown to your next birthday. Accounts properly for leap years and varying month lengths.
About the Age Calculator
How to Use
- Enter your date of birth.
- Optionally change the "Calculate Age On" date — leave it blank to use today.
- Press Calculate to see your exact age, total days lived and days until your next birthday.
Detailed Explanation
This calculator works out your exact age using calendar-aware date arithmetic, correctly accounting for leap years and the varying number of days in each month — rather than a rough estimate like dividing total days by 365, which drifts by roughly a day for every four years due to leap years.
Frequently Asked Questions
Does this account for leap years?
Yes. The calculation uses proper calendar date arithmetic rather than a fixed 365-day year, so leap years and varying month lengths are handled correctly.
Can I calculate age as of a future or past date?
Yes, change the 'Calculate Age On' field to any date to see the age as of that date, not just today.
What if I was born on 29 February?
Your age is still calculated exactly. In non-leap years, your next-birthday countdown treats 1 March as the equivalent date.