Gregorian to Chinese Lunar Date Converter
Enter a Gregorian calendar date to find its corresponding traditional Chinese lunar month, day, year, and leap-month status.
Last updated: July 2026
This tool uses the traditional Chinese calendar, not every calendar called “lunar.” Korean Dangi, Vietnamese, and other regional traditions may differ. The result is informational and not an official or legal date determination.
What this Gregorian-to-lunar converter tells you
Choose any supported Gregorian date to see its traditional Chinese lunar month, lunar day, related year, and whether it belongs to a regular or leap lunar month. The result also shows the Gregorian weekday and its position relative to today.
How the traditional Chinese lunar date is determined
The selected date is handled as a UTC calendar date and formatted through the traditional Chinese calendar built into your browser. The calculator reads the resulting calendar parts directly; it does not use approximate arithmetic or an external service.
Regular and leap lunar months
The traditional Chinese calendar sometimes inserts an intercalary, or leap, month. A regular month and a leap month with the same number are different calendar periods. This converter keeps that distinction explicit.
Chinese lunar calendar versus other regional calendars
This converter specifically uses the browser’s traditional Chinese calendar. It is not a universal converter for every calendar described as lunar. Korean Dangi, Vietnamese, and other regional calendar traditions may produce different results.
Worked example
- Gregorian date
- February 17, 2026
- Gregorian weekday
- Tuesday
- Chinese lunar date
- Regular lunar month 1, day 1
Frequently asked questions
Which lunar calendar does this converter use?
It uses the traditional Chinese lunisolar calendar exposed by the browser.
Is this the same as the Korean lunar calendar?
Not necessarily. Korean Dangi and other regional traditions can differ from the Chinese calendar used here.
What is a leap lunar month?
It is an extra month inserted in some lunar years. It remains distinct from the regular month with the same number.
Why can another converter show a different result?
Another converter may use different regional conventions, calendar data, time-zone assumptions, or a different calendar entirely.
Can I convert today’s date?
Yes. The input defaults to today using your browser’s local calendar date.
Can I use the result for an official or legal document?
No. The conversion is informational and is not an official or legal date determination.
How do I find the Gregorian date of a lunar birthday?
Use the Lunar Birthday This Year Calculator to search for that lunar month and day in a selected year.