Interactive Leap Year Checker
TimeCheck if a year is a leap year and find out when the next ones are.
The Algorithm
A year is a leap year if the following conditions are satisfied:
- The year is multiple of 400.
- The year is multiple of 4 and not multiple of 100.
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How to Use Leap Year Checker
Enter any year to check if it's a leap year. The tool explains the result using the actual leap year rules (divisible by 4, except centuries, unless divisible by 400). It also lists the next upcoming leap years and past leap years for quick reference.
Enter your parameters
Configure the inputs for the Leap Year Checker according to your specific needs.
View real-time results
The utility instantly processes your request and displays the calculated outputs directly in your browser.
Copy or Download
Click the copy icon next to the final output to instantly grab the result, or export it if applicable.