Leap Year Checker
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Frequently Asked Questions
The Leap Year Checker lets you verify whether a given year is a leap year according to the Gregorian calendar rules.
Enter a year into the Leap Year Checker and instantly find out whether it is a leap year or a common year.
Leap years exist to keep the calendar year synchronized with the Earth's orbit around the Sun by adding an extra day every four years, with some exceptions.
A year is a leap year if it is divisible by 4, except for years divisible by 100 unless they are also divisible by 400.
Yes, the Leap Year Checker is completely free to use online without registration or downloads.