Age Calculator
Exact age in years, months, and days.
How this age calculator works
Enter your date of birth and tap Calculate. We compare calendar dates directly so you get an exact breakdown in years, months, and days as of today, instead of an estimate based on 30-day months. Leap years, varying month lengths, and birthday rollovers are handled automatically.
Steps
- Select your date of birth using the calendar picker.
- Press Calculate to generate the Y/M/D breakdown.
- Copy the result if you need to paste it into a form or email.
Accuracy notes
- February 29 birthdays are preserved, so leap-year ages display correctly.
- Future dates trigger a validation error to prevent accidental typos.
- All math is done locally in your browser—no data ever leaves the page.
Sample outputs
- DOB
- 29 Feb 2000 → 24y 0m 5d (on 2024-03-05)
- DOB
- 15 Aug 1990 → 34y 6m 21d (today)
When to use it
Perfect for immigration paperwork, school admissions, retirement planning, or any document that requires your exact age in years, months, and days. Copy the formatted result using the built-in button to avoid typos.
Related tools
- Need age on a different day? Try the Date Difference Calculator.
- Quickly compute future or past milestones with the Percentage Calculator.
FAQ
Can I calculate age on a different date? Use the Date Difference tool to compare any two dates and view the Y/M/D breakdown.
Is the result official? The calculation mirrors calendar math used in most institutions, but always confirm formatting requirements with the requesting organization.