Leap Year Calculator
Use our leap year calculator to quickly determine if any year is a leap year. Simply enter a year below to check if it contains 366 days instead of the usual 365 days.
What is a Leap Year?
A leap year is a calendar year that contains an additional day, February 29th, making it 366 leap year days instead of the standard 365. This extra day keeps our calendar aligned with Earth’s orbit around the sun, which takes approximately 365.25 days.
How to Calculate Leap Year
Understanding how to calculate leap year is straightforward when you follow the leap year formula. A year is considered a leap year if it meets these conditions:
- The year must be divisible by 4
- If the year is divisible by 100, it is NOT a leap year
- UNLESS the year is also divisible by 400, then it IS a leap year
Leap Year Formula Examples
- 2024: Divisible by 4, not a century year = Leap Year
- 2026 leap year or not: Not divisible by 4 = Not a Leap Year
- 2028 leap year or not: Divisible by 4, not a century year = Leap Year
- 2100: Divisible by 100 but not by 400 = Not a Leap Year
- 2000: Divisible by 400 = Leap Year
Next Leap Year
The next leap year after 2024 is 2028. Following that, leap years occur in 2032, 2036, 2040, and so on. To find the next leap year from any given year, you can use our leap year calculator above.
Leap Year Month – February
The leap year month is February, which typically has 28 days but gains an extra day during leap years. February 29th, known as “Leap Day,” is the 60th day of leap years. This makes February unique as the only month whose length varies depending on whether it’s a leap year.
Leap Year Calculator Age
When calculating someone’s age who was born on February 29th, it’s important to understand they only have a “real” birthday every four years. The leap year calculator age feature helps determine how many actual leap year birthdays someone has experienced. For example, a person born on February 29, 2000, would have celebrated only 6 actual leap day birthdays by 2024.
Common Leap Years
| Year | Leap Year? | Days in Year |
|---|---|---|
| 2020 | Yes | 366 |
| 2024 | Yes | 366 |
| 2026 | No | 365 |
| 2028 | Yes | 366 |
| 2032 | Yes | 366 |
Why Do We Have Leap Years?
Leap years exist because Earth’s orbit around the sun takes approximately 365.242 days, not exactly 365 days. Without leap years, our calendar would gradually drift out of sync with the seasons. Over time, this would cause significant discrepancies, with summer eventually occurring in what we currently consider winter months.
Frequently Asked Questions
Is 2026 a leap year or not?
No, 2026 is not a leap year. Since 2026 is not divisible by 4, it follows the standard 365-day calendar year.
Is 2028 a leap year or not?
Yes, 2028 is a leap year. It is divisible by 4 and is not a century year, so it will have 366 days with February containing 29 days.
How many days are in a leap year?
A leap year contains 366 days total, with the extra day added to February as the 29th day of the month.
When is the next leap year after 2024?
The next leap year after 2024 is 2028, which will occur in four years according to the standard leap year cycle.