Age Calculator

Online Age Calculator by Date of Birth

Use free age calculator to find your exact age in years, months, and days. Whether you need to calculate your chronological age for a job application, school admission, or insurance forms. Tool algorithm perfectly handles leap years and the varying lengths of months to ensure your result is always correct.

How to Calculate Your Age

This date of birth calculator is designed to be simple and fast. Follow these easy steps to get your result:

1. Choose Your Mode: Pick "By Date" for a precise breakdown including days, "By Month & Year" for years and months, or "By Year" for a quick check.
2. Enter Birth Details: Select your birth month and enter your day and 4-digit birth year.
3. Pick an End Date (Optional): By default, the tool shows your age as of today. To find out how old you were on a specific past date or will be in the future, use the "Custom End Date" toggle.
4. Click Calculate: Press the "Calculate Age" button to see your results instantly in result.