Convert either direction, with correct handling of leap months and exact new-moon boundaries - built on a real Chinese lunar calendar library, not an approximation.
Choose a direction above and enter a date to see the conversion.
The converter uses a real astronomical Chinese lunar calendar library, so it correctly handles leap months and the exact new moon boundaries for every month, not a fixed approximation.
To keep the lunar calendar aligned with the solar year, an extra 'leap' month is inserted roughly every 2-3 years, repeating the number of the previous month. If your source only gives a month number without noting a leap month, it's almost always the regular month.
Yes. Switch between converting a lunar date to Gregorian, or a Gregorian date to its lunar equivalent, using the toggle above the form.
The conversion happens locally in your browser. The details you submit may be logged to help us understand how the tool is used, but they are never shared publicly or tied to your identity unless you are signed in.