Leap Year Checker

Check whether any year is a leap year and see the next leap years coming up.

Monthly Calendar Widgets

Want this on your Home Screen?

These are real widgets from the app. Get the full month calendar widget on your iPhone Home Screen and Lock Screen - synced with iOS Calendar and Google Calendar, updated automatically.

Clean White full month calendar widget
Sakura full month calendar widget
Dark full month calendar widget
DownloadSee all widgets

Frequently asked questions

Is this year a leap year?
Enter any year and the checker tells you instantly whether it's a leap year, with February having 29 days, or a common year with 28. It defaults to the current year.
What are the leap year rules?
A year is a leap year if it's divisible by 4, except years divisible by 100 - unless they're also divisible by 400. So 2000 was a leap year, but 1900 was not. This keeps the calendar aligned with Earth's orbit.
When is the next leap year?
The checker lists the next several leap years after the one you enter. For a calendar that always shows the right number of days, Monthly Calendar Widgets renders an accurate month grid on your iPhone Home Screen.

More free calendar tools