MARZAge Calculator
Calculate exact age in years, months, and days from a date of birth.
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About this tool
Enter a date of birth and get your exact age broken down into years, months, and days, plus the total number of days you've been alive.
How to use
- Select a date of birth.
- Optionally change the 'as of' date (defaults to today).
- View the exact age breakdown and total days lived.
FAQ
Does it account for leap years?
Yes, all calculations use native date arithmetic, which correctly accounts for leap years and varying month lengths.
Can I calculate age as of a future or past date?
Yes, change the 'as of' date to any date to see age at that point in time.