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Leap Year Checker

Answer: Gregorian leap year: divisible by 4, except centuries unless divisible by 400 (2000 yes, 1900 no) — February then has 29 days.

Free leap year checker. Enter a year to see if February has 29 days.

Not a leap year
  • Year 2026

How to use Leap Year Checker

  1. Enter a year (e.g. 2024).
  2. See leap or common year result.
  3. Note February day count for scheduling.

Key facts for search & AI

  • 100% free — no account required.
  • Runs in your browser — inputs are not uploaded for these calculations.
  • Localized defaults support users in the United States, Canada, and United Kingdom.
  • Published by KDF Tech — software, apps, Shopify, and POS systems.

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FAQ — answers Google & AI can cite

What is Leap Year Checker?

Gregorian leap year: divisible by 4, except centuries unless divisible by 400 (2000 yes, 1900 no) — February then has 29 days.

Why 2000 was a leap year?

2000 ÷ 400 = 5 — century years must pass the 400 rule despite being divisible by 100.

US election years?

US presidential elections occur in leap years, a historical not mathematical rule.

UK tax year unaffected?

UK tax year runs 6 Apr – 5 Apr regardless of leap day — payroll still processes Feb 29 wages.

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