MIStupid.com Logo
The Online Knowledge Magazine

Ancient Chinese Birth Chart Calculator

Legend says that the data used for this formula is from chart that has been buried in a tomb near Beijing for almost 700 years and the original is now in the Beijing Institute of Science. By crossing the month a child was conceived with the age of the mother at conception, the sex of the child can be determined. This chart is said to be 93% accurate. Try it and see.

Mother's Age at conception:
Month of conception:
Predicted gender: