Date & Time • Precision Calculator

Leap Year Calculator

Check whether any year is a leap year using the official Gregorian 4/100/400 divisibility rule. Browse upcoming leap years, February 29 leap day trivia, and historical calendar shifts.

Check Any Year

Gregorian Divisibility Rules

  • Rule 1: Divisible by 4? NO
  • Rule 2: Divisible by 100 (Century Year)? NO
  • Rule 3: Divisible by 400? NO

Leap Year Verdict

365 Days Total
NO, 2026 is a Common Year.

2026 is NOT evenly divisible by 4 (2026 ÷ 4 = 506.50). Therefore, it is a common year.

Days in February
28 Days
Total Days in 2026
365 Days

Upcoming Leap Years

2028 2032 2036 2040 2044 2048 2052 2056

Previous Leap Years

2024 2020 2016 2012 2008 2004 2000 1996

How to Use Leap Year Calculator Online

  1. Enter any year: Type any past, present, or future calendar year (e.g., 2024, 2028, 2100).
  2. Click check leap year: Instantly view whether the year is a leap year with 366 days.
  3. Review calendar rule breakdown: Inspect the mathematical 4-year, 100-year, and 400-year rule explanation.

ClickBasic tools run 100% securely with zero installation, no registration, and no limits.

Key Features of ClickBasic Leap Year Calculator

Gregorian Leap Year Algorithm: Strictly verifies divisibility by 4, 100, and 400 to deliver 100% mathematical accuracy.
Upcoming Leap Years List: Displays next 10 consecutive leap years for future planning.
Educational Formula Insights: Explains why century years like 1900 and 2100 are not leap years, while 2000 was.
Instant Evaluation: Answers as you type with zero delay.

Frequently Asked Questions

A year is a leap year if it is divisible by 4, EXCEPT if it is divisible by 100, UNLESS it is also divisible by 400. This is why 2000 was a leap year, but 1900 was not and 2100 will not be.

2024 and 2028 are leap years with 366 days, featuring February 29th.

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