Many Chinese families remember birthdays by the lunar calendar. This page points you to the right conversion direction.
Quick answer: Use Gregorian to lunar if you know the Western birthday. Use lunar to Gregorian if you know the lunar month and day.
Enter the Gregorian date first to get the lunar birthday.
Enter lunar year, month, day and leap-month status to convert back.
A lunar birthday can fall on a different Gregorian date every year.
Leap-month birthdays require the leap-month checkbox only when that year has the matching leap month.
This page targets one Chinese calendar search phrase. Use the main calendar converter for the actual date calculation, especially when leap lunar months or date-of-birth lookups are involved.
Chinese lunar conversion is date-specific and range-limited. Check the Gregorian date, lunar month, leap-month flag and weekday before using the result in a booking, form or family record.
Chinese lunar date conversion is not a simple month-name translation. The calendar is lunisolar, some years contain leap lunar months, and zodiac-year lookup depends on the Chinese New Year boundary rather than January 1.
The main converter supports practical modern lookups from 1900 to 2100. It is designed for birthdays, family notes, festival checks and cultural calendar lookup, not for ancient historical chronology or legal evidence.
For the full checklist, read the Chinese lunar calendar conversion limits guide. It explains leap-month status, supported range, zodiac boundaries and when a specialist calendar reference is safer.