How it works
Calculate your exact age in years, months and days, plus total days lived and your next birthday.
We normalize civil dates to avoid timezone and daylight-saving errors.
How a complete age is calculated
Age is calculated by counting completed years first, followed by the months and days since the latest birthday. This respects real month lengths and leap years.
The page also shows total days and weeks. Hours are derived from the exact day total and are presented as a convenient equivalent.
Tips for a useful result
- Verify that the birth date is correct and is not in the future.
- For people born on February 29, non-leap years use February 28 as the calculation anniversary.
- Use total days for a continuous measure and years, months and days for a natural reading.
Example
Enter the values and get an instant result.