Leap Year Calculator
Check if a year is a leap year, find leap years in a range, or find the next leap year
Enter a year to check if it’s a leap year
Enter a range of years to find all leap years between them
Enter a year to find the next leap year after it
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How Leap Years Work
Discover the ultimate free online Leap Year Calculator – your instant solution for all leap year calculations! Easily verify if any year is a leap year, generate complete lists of leap years between custom date ranges, or instantly identify the next leap year. This powerful yet simple tool performs accurate Gregorian calendar calculations in seconds, eliminating manual checks and complex mental math. Perfect for students verifying assignments, historians researching timelines, programmers validating date functions, or curious minds exploring calendar patterns. Access this essential date calculator anytime, anywhere – no installations, subscriptions or fees required. Get instant answers for years past, present or future with our completely free online leap year analysis tool!