Leap Year Checker
Check if any year is a leap year and discover upcoming leap years. Learn about the leap year rules and calendar system.
Check Leap Year
Enter any year to check if it's a leap year
Leap Year Results
Leap year information and details
Enter a year to check if it's a leap year
Leap Year Rules
A year is a leap year if:
- It is divisible by 4, AND
- If it's divisible by 100, it must also be divisible by 400
Examples:
- 2024: Divisible by 4 → Leap year ✓
- 1900: Divisible by 100 but not 400 → Not a leap year ✗
- 2000: Divisible by 400 → Leap year ✓
Why leap years? Earth takes approximately 365.25 days to orbit the sun. Leap years help keep our calendar aligned with Earth's orbit.