Leap Year Calculator
Check if any year is a leap year with our free online leap year calculator. Find out if a year has 365 or 366 days and learn about the leap year rules.
Leap Year Rules
- A year is a leap year if it's divisible by 4
- However, if the year is divisible by 100, it's NOT a leap year
- Unless the year is also divisible by 400, then it IS a leap year
Examples: 2024 (leap), 2025 (not), 2026 (not), 2027 (not), 2028 (leap), 1900 (not), 2000 (leap)
Recent and Upcoming Leap Years
2020
Leap Year
2024
Leap Year
2028
Leap Year
2032
Leap Year