Age Calculator
Enter a date of birth to see age in years, months and days and the total days lived. Leave the second date empty to use today.
Years36
Months10
Days5
Total days13,458
How it is calculated
The calendar difference between two dates is split into whole years, months and days; borrowed months use the length of the previous month.
Worked example
| Years | 36 |
| Months | 4 |
| Days | 21 |
| Total days | 13,292 |
FAQ
How is age on a past date found?
Enter that date in the second field.
Are the results exact?
Results are estimates for information only; check official sources for binding figures.