Leap Year Checker

Check if any year is a leap year. See the rules explained and find the next or previous leap years.

1. Enter any year (e.g., 2028 or 1900) in the input field to check whether it is a leap year or a common year. 2. View the result along with an explanation of which specific Gregorian calendar rule (divisible by 4, century exception, or 400-year exception) applies to your year. 3. Browse the list of nearby leap years displayed before and after your entered year for quick reference. 4. Check the next upcoming leap year highlighted if your entered year is not a leap year. 5. Optionally enter a start and end year to count how many leap years fall within that range.

About This Tool

The Leap Year Checker instantly tells you whether a given year is a leap year or a common year. Enter any year and the tool applies the Gregorian calendar leap year rules to give you a definitive answer.

The rules are simple but have subtle exceptions: a year is a leap year if it is divisible by 4, except for century years which must also be divisible by 400. So 2024 is a leap year, 1900 is not, and 2000 is. The checker explains exactly which rule applies to your entered year.

The tool also displays a list of nearby leap years, shows the next upcoming leap year, and calculates how many leap years fall within a range you specify. This is useful for calendar planning, date calculations, and educational purposes.

Frequently Asked Questions

A year is a leap year if it is divisible by 4. However, years divisible by 100 are not leap years unless they are also divisible by 400. So 2024 is a leap year, 1900 is not, and 2000 is.

Earth takes approximately 365.2422 days to orbit the Sun. Without leap years, our calendar would drift about 24 days every 100 years. Adding an extra day every four years (with century corrections) keeps the calendar aligned with the seasons.

Leap years occur every 4 years on average, but the century rule means we skip 3 leap years every 400 years. This gives us 97 leap years per 400-year cycle.

People born on February 29 typically celebrate their birthday on February 28 or March 1 in non-leap years. Legally, different jurisdictions handle this differently for age-related milestones.

Yes. Although 2000 is divisible by 100 (which would normally exclude it), it is also divisible by 400, making it a leap year. The year 1900, however, was not a leap year.

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