About the Leap Year Calculator
Check any year in the Gregorian calendar and see why it is or isn’t a leap year.
Leap Year Calculator formula
leap year ⇔ (year divisible by 4 and not by 100) or (divisible by 400)Leap Year Calculator
Check whether a year is a leap year and find the next and previous leap years.
- Enter your numbers
- Results update as you type
- Copy the answer or share the link
Runs in your browser. Your data and files never leave your device.
Frequently asked questions
Was 2000 a leap year?
Yes. Century years are leap years only if divisible by 400, so 2000 was and 1900 wasn’t.
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