Exact Age Calculator

Exact Age Calculator is a free tool that runs entirely in your browser, with no data ever sent to a server. Calculate a precise age in years, months, and days between two dates.

What it's for

Find a precise age for an administrative form, check a minimum-age condition, or simply know how many days separate you from your next birthday.

What this tool does not do

This tool only applies the calculation described, with no check on the context of use. No limit is set by the tool itself; the only constraint is your device's memory.

Frequently asked questions

Does the calculation account for leap years?

Yes: the calculation relies on the browser's Date objects, which natively handle leap years and the real length of each month.

Is my data sent to a server?

No: the dates you enter are processed entirely in your browser, on your device. They are never transmitted to a server.

Do I need to create an account or install anything?

No: the tool works directly in this page, with no sign-up and nothing to install.