Years Between Dates Calculator
Compute years between two dates with a years/months/days breakdown — useful for tenure, anniversaries, and exact-age questions.
Result
Years between
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How to use this calculator
- Enter start and end dates.
- The primary line shows years/months/days. The hint shows the same value as a decimal years count.
About this calculator
When you need an exact "years and months and days" gap — for an age, a tenure, or an anniversary — calendar arithmetic matters. This calculator borrows days from the previous month and months from the previous year the way you would do it on paper, so the breakdown is the one humans expect rather than a raw decimal.
Frequently asked
If the end day-of-month is earlier than the start day-of-month, we have not yet completed the current month — so we borrow one month and add the previous month's day count to the days field. Same idea applied to months and years.
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