Leap Year
Leap Year is a fast, free everyday-life calculator. Enter Year to get an instant, accurate result — complete with the formula, a step-by-step worked example, and answers to common questions, all on one page and private to your browser.
Formula
Leap year: divisible by 4 but not 100, OR divisible by 400
- Leap year: divisible by 4 but not 100, OR divisible by 400
Leap Year
Leap Year calculation.
Frequently asked questions
How is Leap Year calculated?
Leap year: divisible by 4 but not 100, OR divisible by 400