What is a leap year?
A leap year is a year with 366 days instead of 365, adding February 29 to keep the calendar aligned with the solar year.
Date & Time
Leap Year Checker
Check whether a year is a leap year directly in your browser. See if February has 28 or 29 days and understand the leap year rule.
Tool
Leap Year Checker
Check whether a year is a leap year directly in your browser. See if February has 28 or 29 days and understand the leap year rule.
This tool runs in your browser. Your input is processed locally and is not uploaded.
About this Tool
Use this free leap year checker to find out whether a year has 365 or 366 days. Enter any year and instantly see whether February has 28 or 29 days.
Conversion Formula
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In the Gregorian calendar, a year is a leap year if it is divisible by 4, except years divisible by 100 are not leap years unless they are also divisible by 400.
Examples
- 2024 is a leap year
- 2026 is not a leap year
- 2000 is a leap year because it is divisible by 400
Frequently Asked Questions
How do I know if a year is a leap year?
A year is usually a leap year if it is divisible by 4, but century years must also be divisible by 400.
Is 1900 a leap year?
No. 1900 is divisible by 100 but not by 400, so it is not a leap year in the Gregorian calendar.
Is 2000 a leap year?
Yes. 2000 is divisible by 400, so it is a leap year.
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