ABOUT THIS TOOL

How Age Calculator works

Calendar age is more precise than dividing elapsed days by 365 because month lengths and leap years vary. Enter a birth date and comparison date to calculate the calendar difference.

How to use it

Enter the date of birth.
Choose the date to calculate age on.
Review years, months and days.
Verify official eligibility rules separately where required.

Works well for

Exact age checks
Eligibility-date checks
Record preparation
Birthday interval calculations

Supported workflow

Calculates age from a date of birth using calendar dates rather than a rough days-divided-by-365 estimate.

Things to know before you use it

The displayed result depends on the date entered and the current date in the browser.

Privacy

The date you enter and the calculation stay in your browser.

Read the full FileFiddler privacy policy.

Common questions

Is Age Calculator free to use?

Yes. FileFiddler currently provides this tool free to use in the browser.

What should I check if the result is not what I expected?