About the Leap Year Checker
Find out whether a year is a leap year and why. The rules (divisible by 4, except centuries unless divisible by 400) are applied step by step, with a list of nearby leap years.
Key features
- Checks any year instantly
- Rules explained step by step
- Next and previous leap years
- Weekday of 29 February
- Works for past and future years
- Gregorian calendar rules
Is it a leap year?
Enter any year to find out, with the reasoning shown step by step.
The leap year rules
- If the year is divisible by 4, it's a leap year…
- …unless it's divisible by 100, in which case it isn't…
- …unless it's also divisible by 400, in which case it is.
| Year | ÷4 | ÷100 | ÷400 | Leap year? |
|---|---|---|---|---|
| 2024 | ✓ | ✗ | ✗ | Yes |
| 2026 | ✗ | ✗ | ✗ | No |
| 1900 | ✓ | ✓ | ✗ | No |
| 2000 | ✓ | ✓ | ✓ | Yes |
| 2100 | ✓ | ✓ | ✗ | No |
Leap years this century
2000, 2004, 2008, 2012, 2016, 2020, 2024, 2028, 2032, 2036, 2040, 2044, 2048…
Related tools
Day of the week calculator, age calculator, and week number.
How to use the Leap Year Checker
- Pick a date, a time or the cities you want; your own time zone is filled in for you.
- Search for any city or time-zone name such as EST, GMT or PKT.
- Results update instantly as you change anything.
- Your city lists are remembered in this browser for next time.