Check if a year is a leap year
Check if any year is a leap year with 366 days instead of 365.
Leap if: (year % 4 == 0 AND year % 100 != 0) OR (year % 400 == 0)
Yes, our Leap Year Checker is completely free to use. No registration, payment, or subscription required.
Our calculator uses precise mathematical formulas and algorithms to ensure accurate results for all your date & time calculations. The formula used is: Leap if: (year % 4 == 0 AND year % 100 != 0) OR (year % 400 == 0)
This calculator is perfect for: Calendar planning, Date calculations, Historical research, Programming. It's designed for both personal and professional use.
Yes, our Leap Year Checker is fully responsive and works perfectly on smartphones, tablets, and desktop computers. The interface adapts to your screen size for optimal usability.
No, we don't store any of your input data or calculation results. All calculations are performed locally in your browser for complete privacy and security.