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Leap Year Checker
Check if any year is a leap year, with the previous and next leap years.
Free · No sign-up · Updated August 2026
2024
is a leap year ✓ (366 days)
Previous leap years
2012, 2016, 2020
Next leap years
2028, 2032, 2036, 2040, 2044
A year is a leap year if it's divisible by 4 — except century years, which must be divisible by 400 (so 1900 wasn't, but 2000 was).
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Frequently asked questions
What makes a leap year?＋
A year divisible by 4 is a leap year, except century years, which must also be divisible by 400 — so 2000 was a leap year but 1900 wasn't.
Why do we have leap years?＋
To keep the calendar aligned with Earth's orbit, which takes about 365.24 days. The extra day (Feb 29) corrects the drift.