Lunar↔Solar Converter
Convert between lunar and solar calendar dates
About this tool
Lunar-Solar Converter instantly converts between the lunar (Chinese/Korean) calendar and the Gregorian (solar) calendar. Use it to find the solar date for Lunar New Year, Chuseok, or a lunar birthday. Leap months are fully supported.
How to use
- Choose Solar→Lunar or Lunar→Solar mode.
- Enter a date.
- The converted date and day of the week appear instantly.
FAQ
What is the difference between lunar and solar calendars?
The solar (Gregorian) calendar follows Earth's orbit around the sun, while the lunar calendar follows the moon's phases. Traditional Korean holidays like Seollal and Chuseok are based on the lunar calendar.
What is a leap month?
Because the lunar year is about 11 days shorter than the solar year, an extra "leap" month is added roughly every 3 years to keep seasons aligned. You can select the leap month checkbox when converting from lunar to solar.
What year range is supported?
Conversions are supported from 1900 to 2100.
Results are for reference only. Please verify with official sources