Utility
Age Calculator
Exact age in years, months, days.
Result
30y 11m 23d
Total days
11,315
Total months
371
Download results
Quick summary
Compute exact age from a date of birth, broken down by years, months, and days.
How to calculate age manually
- Enter your input values into the Age calculator above.
- Review the formula and assumptions in the Expert Guide section.
- Adjust the inputs to model different scenarios in real time.
- Save or export the results once they match your scenario.
Compute exact age from a date of birth, broken down by years, months, and days.
How it works
Subtract dates and roll over negative day/month components, accounting for variable month lengths.
Example
Born 1995-06-15 → ~30y 4m.
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