Using this tool
Convert Gregorian dates to and from the Korean lunar calendar, with leap-month support.
Understand the calculation and data coverage before relying on a result. Read the guidance and tool-specific limits below.
- Choose the options and enter your values below.
- Press the action button to see your result.
- Copy your result or save the output file.
What to know
This follows the Korean calendar and can differ from Chinese or Vietnamese calendars. Supported Gregorian output: 1900-01-01 through 2050-12-31. Lunar input must convert into that range; leap-month selection must match an actual leap month.
Common questions
Do I need to install an app or sign in?
No. Open it in a modern browser and start.
Where is my input processed?
Files and input content are not uploaded to GameNow.