FREE · TIME & DATE TOOLS
Leap Year Checker.
Check a Gregorian leap year and list subsequent leap years.
How to use Leap Year Checker
Choose the operation, enter the required values and generate the result. Review units, calendar rules and assumptions before using it.
How it works
Check a Gregorian leap year and list subsequent leap years. Proleptic Gregorian years 1–9,999. This does not use local historical calendar transitions.
Example
2000 is leap; 1900 is not
Questions about Leap Year Checker
Is Leap Year Checker free, and do I need an account?
Yes. This tool is free to use in your browser without an account. Processing takes place on your device.
What are the limits and what should I check?
Proleptic Gregorian years 1–9,999. This does not use local historical calendar transitions. Review the result before using it in your work.
Is my input sent to a server?
Your input is processed in your browser and is not uploaded by this tool. Files and pasted text are cleared when the page is refreshed. Normal website requests are still required to load the page and its libraries. Read the privacy explanation.