Leap Year Checker

Check if any year is a leap year and learn about leap year rules

Enter any year between 1 and 9999
About Leap Years

Learn about leap year rules and calculations:

  • A year is a leap year if it's divisible by 4
  • Exception: Years divisible by 100 are not leap years
  • Exception to exception: Years divisible by 400 are leap years
  • Leap years help keep our calendar in sync with Earth's orbit
Usage Tips
  • Enter any year to check if it's a leap year
  • Get instant results with detailed explanations
  • Learn about the next leap year
  • Understand leap year rules and calculations