Age Calculator

Calculate Your Age in Years, Months and Days

This free online age calculator shows the time between your date of birth and today in years, months and days. It provides a more useful answer than a simple year subtraction by separating the result into familiar calendar units.

The calculator fills in the current date automatically when the page opens. You can also change that comparison date when you want to find your age on a past date, check how old you will be on a future date or measure the interval between two personal milestones.

How to Use the Age Calculator

1. Enter the day, month and four-digit year of your birth in the Date of birth fields.
2. Review the automatically supplied date under Today's date, or replace it with another comparison date.
3. Select Calculate age to display the result in years, months and days.

Use numbers only and make sure each date is entered in day, month and year order. For example, 5 December 1990 should be entered as day 05, month 12 and year 1990.

Useful Ways to Compare Dates

Besides checking your current age, you can use the adjustable comparison date for birthdays, school eligibility, forms, anniversaries and other situations where an age or date interval is needed. It is also useful for answering questions such as how old someone was on a particular day or how old they will be at a future event.

Your dates are processed directly in the browser for the calculation. There is no sign-up, and you can change the values and calculate again whenever you need another result.