Years Calculator

Find the exact calendar gap plus total months, total days, and decimal years between dates.

Start date

End date

—Exact calendar difference

—Decimal years

—Complete months

—Total days

—Calendar years/months/days are calculated without using an average month length.

How to use this Years Calculator

Calculate years, months, and days between two dates. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.