Get Chinese Gender Calendar

The Chinese birth calendar claims 93-99% accuracy in predicting infant gender based on month of conception and maternal age at delivery. In this large delivery dataset, accurate prediction of fetal gender based on the Chinese birth calendar was no better than a coin toss.

If father's age at conception is an odd number and mother's age at conception is an even number, you will get a boy. If father's age at conception is an even number and mother's age at conception is an odd number, you will get a girl.

Some say the Chinese Gender Predictor is 90 percent accurate, but the research and related math don't quite validate those stats.

Chinese Gender Predictor The age in the chart should be the Chinese age at the time of conception. It's usually 1 or 2 years older than your actual age. To get it, please subtract your Chinese lunar birth year from the lunar year you conceived then plus another one year.

About the Chinese Gender Prediction Method By considering the month of conception and the age of the mother at conception, a formula is used to determine whether the baby is likely to be a boy or a girl. Stories date use of this method back over 700 years, and claim a reputation for amazing accuracy – up to 90%.

It takes 49 as the base, plus the lunar month of conception, minus the lunar age at conception. If the result is an odd number, it should be a boy; otherwise it is a girl. For example, someone is 31 lunar years old and got pregnant in lunar January, 49+1-31=19, so she should be conceiving a baby boy.