Use our Leap Year Calculator below to quickly find out whether any year is a leap year and view the next upcoming leap years automatically.
Leap Year Calculator
Enter a year to check whether it is a leap year. Press Enter or click Check.
Enter a year to begin.
Quick facts: A leap year is every year divisible by 4, except years divisible by 100 — unless they’re also divisible by 400.
Next 10 leap years
A leap year adds an extra day to the calendar—February 29—to keep our yearly time in sync with the Earth’s orbit.
How is a Leap Year Calculated?
A year is considered a leap year if it meets these rules:
- Divisible by 4 → It may be a leap year
- Divisible by 100 → It is not a leap year (exception below)
- Divisible by 400 → It is a leap year
Examples:
- 2024 → divisible by 4 → Leap year
- 2100 → divisible by 100 but not 400 → Not a leap year
- 2000 → divisible by 400 → Leap year
This system ensures the calendar stays aligned with the Earth’s 365.242-day orbit.
How to Use Our Leap Year Calculator
- Enter any year (e.g., 2024, 2032, 1900) into the input box.
- Click Check or press Enter.
- The calculator will immediately tell you whether it is a leap year.
- It will also display the next 10 leap years starting from the year you entered.
The tool works instantly without needing extra inputs.
Summary
Our Leap Year Calculator makes it simple to check whether a specific year has 366 days, understand how leap years work, and quickly view upcoming leap years. Whether you’re planning events, coding date-based tools, or verifying calendar data, this calculator provides clear and instant results.