Find your exact age down to the day and hour. This free age calculator shows your age in years, months and days, the total days, hours and minutes you’ve lived, and the countdown to your next birthday.
Counts exact calendar years, months and days, plus the total time lived. Leave the second date blank to use today.
What This Age Calculator Shows You
An age calculator works out the time between your date of birth and any date (today by default). It shows your exact age in years, months and days, the total days, hours and minutes you’ve lived, and a countdown to your next birthday.
How Age Is Calculated
The calculator counts complete calendar years, then months, then days — correctly handling different month lengths and leap years. For totals, it measures the full time span and converts it to days (x24 for hours, x60 for minutes). Someone born on 1 January 2000 is exactly 26 years old on 1 January 2026 — about 9,497 days or 227,928 hours.
How to Use the Age Calculator
- Enter your date of birth.
- Add a time of birth if you want hour-level precision (optional).
- Set a second date to find your age then, or leave it blank for today.
- Read your result. Exact age and totals update instantly.
Things You Can Work Out With It
- Your exact age for forms, eligibility or milestones.
- How many days until a birthday or special date.
- Age on a past or future date by setting the second field.
- Fun totals like how many hours or minutes you’ve been alive.
Want to predict a child’s adult height too? See our Height Calculator.