Leap Year Calculator

Your details

Single mode checks one year; Range mode lists every leap year between two years.
Any year between 1 and 9999 in the proleptic Gregorian calendar.
Leap year?Leap Year
Yes - leap year

Whether the year has 366 days

Days in year366days
Next leap year2,024
Previous leap year2,024
2,024
  • 1904
  • 1928
  • 1952
  • 1976
  • 2000 (400-yr)
  • 2024
  • 2048
  • 2072
  • 2096

2024 is a leap year (366 days).

  • 2024 has 366 days because February has 29 days this year.
  • 2024 is divisible by 4 but not by 100, so it satisfies the standard leap-year rule.

Next stepLeap days matter for age calculations, contracts with "per year" clauses, and scheduling recurring events. If a birthday, anniversary, or deadline falls on Feb 29, check how it is handled in non-leap years.

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