Leap Year Checker

Free leap year checker. Find out if any year is a leap year with February 29th. Understand the leap year rules and patterns.

Instantly check whether any year is a leap year. Learn the rules behind leap years and find patterns in this every-four-years (mostly) phenomenon.

Common use cases

  • February 29 birthday planning
  • Calendar and scheduling applications
  • Historical date calculations
  • Programming date validation
  • Educational purposes

How to use

  1. Enter any year to check
  2. See if it's a leap year (yes/no)
  3. View the next and previous leap years
  4. Understand why it is or isn't a leap year
  5. Check multiple years quickly

FAQ

What makes a year a leap year?

Divisible by 4, except century years must also be divisible by 400 (so 2000 was, 1900 wasn't).

Why do we have leap years?

Earth's orbit takes about 365.25 days. Leap years prevent calendar drift from the astronomical year.

When is the next leap year?

Leap years include 2024, 2028, 2032, and so on following the 4-year pattern with century exceptions.