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Chinese gender calendar: lunar date converter

Explore lunar age and conception month, with an honest explanation of the folklore.

Source-linked preview · Independent clinical and translation review pending.

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Your result

Enter your details to see a result and its reference.

THE LITTLE DETAILS

Made for your everyday.

Lunar age = conception lunar year − birth lunar year + 1. Leap months are shown explicitly. This converter does not output a boy/girl prediction: a population study found the calendar no better than chance. Different folk tables disagree; a calculated date is not evidence about fetal sex.

Three small steps

  1. Choose dates, units and the applicable reference.
  2. Enter accurate details; read the conditions before calculating.
  3. Read the result, method and original sources together.
How should I interpret this result?

Lunar age = conception lunar year − birth lunar year + 1. Leap months are shown explicitly. This converter does not output a boy/girl prediction: a population study found the calendar no better than chance. Different folk tables disagree; a calculated date is not evidence about fetal sex.