EpochKit

Leap Year Calculator

Check if a year is a leap year. Learn about leap year rules and see upcoming leap years.

Check if a Year is a Leap Year

Next 10 Leap Years

2028
2032
2036
2040
2044
2048
2052
2056
2060
2064

All Years (1850 - 2100)

Complete list of all years with their properties. Search to jump to a specific year.

YearNr of daysNr of ISO weeksLeap year?Leap Year Cycle
185036552—Year II
185136552—Year III
185236653YesYear IV
185336553—Year I
185436552—Year II
185536552—Year III
185636652YesYear IV
185736553—Year I
185836553—Year II
185936552—Year III
186036652YesYear IV
186136552—Year I
186236552—Year II
186336553—Year III
186436653YesYear IV
186536552—Year I
186636552—Year II
186736552—Year III
186836653YesYear IV
186936553—Year I
187036552—Year II
187136552—Year III
187236652YesYear IV
187336552—Year I
187436553—Year II
187536553—Year III
187636652YesYear IV
187736552—Year I
187836552—Year II
187936552—Year III
188036653YesYear IV
188136553—Year I
188236552—Year II
188336552—Year III
188436652YesYear IV
188536553—Year I
188636553—Year II
188736552—Year III
188836652YesYear IV
188936552—Year I
189036552—Year II
189136553—Year III
189236653YesYear IV
189336552—Year I
189436552—Year II
189536552—Year III
189636653YesYear IV
189736553—Year I
189836552—Year II
189936552—Year III
190036552—Year IV
190136552—Year I
190236552—Year II
190336553—Year III
190436653YesYear IV
190536552—Year I
190636552—Year II
190736552—Year III
190836653YesYear IV
190936553—Year I
191036552—Year II
191136552—Year III
191236652YesYear IV
191336552—Year I
191436553—Year II
191536553—Year III
191636652YesYear IV
191736552—Year I
191836552—Year II
191936552—Year III
192036653YesYear IV
192136553—Year I
192236552—Year II
192336552—Year III
192436652YesYear IV
192536553—Year I
192636553—Year II
192736552—Year III
192836652YesYear IV
192936552—Year I
193036552—Year II
193136553—Year III
193236653YesYear IV
193336552—Year I
193436552—Year II
193536552—Year III
193636653YesYear IV
193736553—Year I
193836552—Year II
193936552—Year III
194036652YesYear IV
194136552—Year I
194236553—Year II
194336553—Year III
194436652YesYear IV
194536552—Year I
194636552—Year II
194736552—Year III
194836653YesYear IV
194936553—Year I
195036552—Year II
195136552—Year III
195236652YesYear IV
195336553—Year I
195436553—Year II
195536552—Year III
195636652YesYear IV
195736552—Year I
195836552—Year II
195936553—Year III
196036653YesYear IV
196136552—Year I
196236552—Year II
196336552—Year III
196436653YesYear IV
196536553—Year I
196636552—Year II
196736552—Year III
196836652YesYear IV
196936552—Year I
197036553—Year II
197136553—Year III
197236652YesYear IV
197336552—Year I
197436552—Year II
197536552—Year III
197636653YesYear IV
197736553—Year I
197836552—Year II
197936552—Year III
198036652YesYear IV
198136553—Year I
198236553—Year II
198336552—Year III
198436652YesYear IV
198536552—Year I
198636552—Year II
198736553—Year III
198836653YesYear IV
198936552—Year I
199036552—Year II
199136552—Year III
199236653YesYear IV
199336553—Year I
199436552—Year II
199536552—Year III
199636652YesYear IV
199736552—Year I
199836553—Year II
199936553—Year III
200036652YesYear IV
200136552—Year I
200236552—Year II
200336552—Year III
200436653YesYear IV
200536553—Year I
200636552—Year II
200736552—Year III
200836652YesYear IV
200936553—Year I
201036553—Year II
201136552—Year III
201236652YesYear IV
201336552—Year I
201436552—Year II
201536553—Year III
201636653YesYear IV
201736552—Year I
201836552—Year II
201936552—Year III
202036653YesYear IV
202136553—Year I
202236552—Year II
202336552—Year III
202436652YesYear IV
202536552—Year I
2026(Current)36553—Year II
202736553—Year III
202836652YesYear IV
202936552—Year I
203036552—Year II
203136552—Year III
203236653YesYear IV
203336553—Year I
203436552—Year II
203536552—Year III
203636652YesYear IV
203736553—Year I
203836553—Year II
203936552—Year III
204036652YesYear IV
204136552—Year I
204236552—Year II
204336553—Year III
204436653YesYear IV
204536552—Year I
204636552—Year II
204736552—Year III
204836653YesYear IV
204936553—Year I
205036552—Year II
205136552—Year III
205236652YesYear IV
205336552—Year I
205436553—Year II
205536553—Year III
205636652YesYear IV
205736552—Year I
205836552—Year II
205936552—Year III
206036653YesYear IV
206136553—Year I
206236552—Year II
206336552—Year III
206436652YesYear IV
206536553—Year I
206636553—Year II
206736552—Year III
206836652YesYear IV
206936552—Year I
207036552—Year II
207136553—Year III
207236653YesYear IV
207336552—Year I
207436552—Year II
207536552—Year III
207636653YesYear IV
207736553—Year I
207836552—Year II
207936552—Year III
208036652YesYear IV
208136552—Year I
208236553—Year II
208336553—Year III
208436652YesYear IV
208536552—Year I
208636552—Year II
208736552—Year III
208836653YesYear IV
208936553—Year I
209036552—Year II
209136552—Year III
209236652YesYear IV
209336553—Year I
209436553—Year II
209536552—Year III
209636652YesYear IV
209736552—Year I
209836552—Year II
209936553—Year III
210036553—Year IV

What is a Leap Year?

A leap year is a year that has 366 days instead of the usual 365 days. The extra day is added to February, making it 29 days instead of 28. Leap years occur every 4 years to keep the calendar synchronized with the Earth's orbit around the Sun. Understanding leap years is essential for accurate date calculations, calendar systems, and time-based applications.

Related tools: Use our Days by Year calculator to view all days for a specific year, or check out our Weeks by Year tool to see all weeks. For more date utilities, visit our Tools page.

Leap Year Rules:

  • A year is a leap year if it is divisible by 4
  • However, if the year is divisible by 100, it is NOT a leap year
  • Exception: If the year is divisible by 400, it IS a leap year

Examples: 2024 is a leap year (divisible by 4). 1900 was NOT a leap year (divisible by 100 but not 400). 2000 was a leap year (divisible by 400).

Frequently Asked Questions

What is a leap year?

A leap year is a year that has 366 days instead of the usual 365 days. The extra day is added to February, making it 29 days instead of 28. Leap years occur every 4 years to keep the calendar synchronized with the Earth's orbit around the Sun.

What are the leap year rules?

A year is a leap year if it is divisible by 4. However, if the year is divisible by 100, it is NOT a leap year. Exception: If the year is divisible by 400, it IS a leap year. For example, 2024 is a leap year, 1900 was NOT a leap year, and 2000 was a leap year.

How many days are in a leap year?

A leap year has 366 days instead of the usual 365 days. The extra day is February 29th, which only exists in leap years.

Related Guides

Week Numbers

Current week number (ISO-8601)

Weeks by Year

View all weeks for a year

Day Numbers

Current day of year