Leap Year Calculator
Check if any year is a leap year, calculate leap years in a range, and find the next leap years. Easy and accurate leap year calculations.
Step 1: Year Details
Leap Year Rules
A year is a leap year if it is divisible by 4, except for end-of-century years, which must be divisible by 400. This means 2000 was a leap year, but 1900 was not.
Step 2: Calculation Options
What is a Leap Year?
A leap year has 366 days instead of 365, with an extra day added to February (February 29). This adjustment keeps our calendar aligned with Earth’s orbit around the Sun.
Leap Year Calculation Results
Leap Years List
| Year | Leap Year? | Divisible by 4 | Divisible by 100 | Divisible by 400 | Result |
|---|
Leap Year Rules Explained
Leap Year Calculation Formula
if (year is not divisible by 4) then (it is a common year)
else if (year is not divisible by 100) then (it is a leap year)
else if (year is not divisible by 400) then (it is a common year)
else (it is a leap year)
Historical Leap Years
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