The The Oriental Method For Selecting A Child’s Gender

I’m often asked about the use of zodiac methods for helping parents decide whether their child will be born a boy or a girl. This concept is based the Chinese Gender Calendar which, it is claimed, can help you accurately predict your future baby’s sex.

Origins of the Gender Calendar

The Chinese baby calendar itself originates from the Qing Dynasty (1644-1911) where its accuracy was considered to be about 70 percent. According to legend, the chart was invented at the beginning of the Qing dynasty with the help of I Ching which includes the Yin and Yang, the Five Elements and the Eight Trigrams. The original Gender Chart was found in the tomb of an emperor. Its original copy is now in the Institute of Science in Beijing. The Chinese Gender Chart 2016, for example, is based on two elements: the mother’s lunar age and the lunar month of conception (remember this).

Why Do Chinese People Prefer Baby Boys To Girls?

The answer is simple. On average a male was likely to be physically stronger than a female which meant they could help out with heavier duties on the family farm. As a result, they could make more money for the family. Girls, on the other hand, would be more likely to stay at home doing lighter domestic duties, until they married. At this point, their own families had no further control over their life of conduct. They were thus considered more of a liability than boys and, therefore, less desirable.

How Does It Work?

It is customary for the Chinese people to celebrate their Full Moon Festival on the 15th day of the 8th lunar month. On full moon days, the moon, the earth and the sun are all in line, so the tides are at their greatest. Chinese scientists consider it unwise to conceive on such days as more than two-thirds of the human body is made of liquid and the strong gravitational forces may cause the highest biological tides inside the body and brain during the full moon period.

Such internal body changes can result in depression, anxiety and behavioural problems. The reasoning is that if human hormones are affected by gravitational forces, then imbalanced hormones could certainly result in emotional changes. Either way, the quality of the sperm and eggs could be affected so it is unwise to get conceive during full moon days or the unborn child may suffer birth defects.

The Chinese Gender Calendar breaks down into columns and rows. Column 1 is numerical and the numbers reflect the mother’s possible age range. Each month of the year is shown in the vertical column. As you can see from the example below, each cell is designated by a value of M=Male or F=Female. By looking at the mothers age and moving down the months of the year you can find the potential gender of a child conceived on that day in that year to a mopther of a given age. The infographic below is for the year of the Monkey 2016 but please note that a different chart will be relevant for each Lunar year.

gender chart for lunar year 2016
Example Chinese Baby Calendar For 2016 with thanks to the Baby Centre

Selecting the Gender Before Pregnancy Occurs

If parents are interested in the sex of their child and would like to know if they can tilt the chances in their favour, then consider the birth calendar (but note my final comments on this page). With reference to the chart example above you can see that by looking up your age (your Chinese lunar age that is – make sure you get this right) and month you can see whether a boy or a girl is more probable. Not definite remember – more probable.

Scientific Studies

By reputation parents in the far East believe that the baby predictor has an accuracy of 70-93%. However, my own findings are more in line with a peer-reviewed study conducted in Sweden between 1973 and 2006. These tests showed that the accuracy was approximately 50%.

If you would like to try out this ancient method then please remember this;

You have to use your CHINESE age It is normally a year extra past your age at conceiving the child – Unless you were born yourself in the months of January or February.

An example calculator can be found here


The The Oriental Method For Selecting A Child’s Gender was last modified: August 26th, 2016 by George