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Chinese Gender Predictor

The Chinese Gender Calendar is considered one of the oldest methods for predicting the gender of an unborn baby. It is also one of the simplest, where the only necessary information is the mother's age at conception and the month of conception.

The Chinese Gender Calendar can be used in two ways. If you will use it for predicting the sex of an unborn child, simply enter your age at conception and the month of conception. If you will use it for planning your baby's gender, then find a suitable period for conception based on your age. In order to increase your chances, find a period when the gender remains steady for at least two months. See chart below.

When using the calendar to plan your baby's gender, to maximize the chance for correct prediction you should avoid conception during the first or last ten days of a gender period (period for conceiving a certain gender according to the calendar). Refer to chart below. The reason is that there are unknown, but apparently gradual changes taking place between two successive gender periods. During these changes the selection of gender happens more or less by chance.

How accurate is it? It is believed to be approximately 75% accurate (3 out 4 chance it will be correct).
Mother's Age At Conception:
Be sure to select the age you were when conception occured (this will likely be the day you ovulated).
Month of Conception:
Select the month when conception occured. This will likely be the day you ovulated. If you do not know your exact ovulation date, you can use the "average" and add 14 days to the first day of your last menstrual period. Keep in mind if you are estimating the prediction will not be as accurate.



Note: A common idea is that the Chinese Gender Calendar should be based on lunar cycles, as per the agricultural calendar (yin-yang-li). But since the Chinese Gender Calendar has its roots in astrology, which is based on the sun's movement around the zodiac, perhaps it makes more sense to use solar calendar dates. In fact, the research on this site shows that the highest accuracy is achieved when western dates (in accordance with the Gregorian calendar) are applied. In other words you don't need to convert birth dates and conception dates into other calendar systems.

Visit http://www.chinesegendercalendar.info for full research details.

 Month of Conception
Age of Mother Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
18 Girl Boy Girl Boy Boy Boy Boy Boy Boy Boy Boy Boy
19 Boy Girl Boy Girl Girl Boy Boy Boy Boy Boy Girl Girl
20 Girl Boy Girl Boy Boy Boy Boy Boy Boy Girl Boy Boy
21 Boy Girl Girl Girl Girl Girl Girl Girl Girl Girl Girl Girl
22 Girl Boy Boy Girl Boy Girl Girl Boy Girl Girl Girl Girl
23 Boy Boy Girl Boy Boy Girl Boy Girl Boy Boy Boy Girl
24 Boy Girl Boy Boy Girl Boy Boy Girl Girl Girl Girl Girl
25 Girl Boy Boy Girl Girl Boy Girl Boy Boy Boy Boy Boy
26 Boy Girl Boy Girl Girl Boy Girl Boy Girl Girl Girl Girl
27 Girl Boy Girl Boy Girl Girl Boy Boy Boy Boy Girl Boy
28 Boy Girl Boy Girl Girl Girl Boy Boy Boy Boy Girl Girl
29 Girl Boy Girl Girl Boy Boy Boy Boy Boy Girl Girl Girl
30 Boy Girl Girl Girl Girl Girl Girl Girl Girl Girl Boy Boy
31 Boy Girl Boy Girl Girl Girl Girl Girl Girl Girl Girl Boy
32 Boy Girl Boy Girl Girl Girl Girl Girl Girl Girl Girl Boy
33 Girl Boy Girl Boy Girl Girl Girl Boy Girl Girl Girl Boy
34 Boy Girl Boy Girl Girl Girl Girl Girl Girl Girl Boy Boy
35 Boy Boy Girl Boy Girl Girl Girl Boy Girl Girl Boy Boy
36 Girl Boy Boy Girl Boy Girl Girl Girl Boy Boy Boy Boy
37 Boy Girl Boy Boy Girl Boy Girl Boy Girl Boy Girl Boy
38 Girl Boy Girl Boy Boy Girl Boy Girl Boy Girl Boy Girl
39 Boy Girl Boy Boy Boy Girl Girl Boy Girl Boy Girl Girl
40 Girl Boy Girl Boy Girl Boy Boy Girl Boy Girl Boy Girl
41 Boy Girl Boy Girl Boy Girl Boy Boy Girl Boy Girl Boy
42 Girl Boy Girl Boy Girl Boy Girl Boy Boy Girl Boy Girl
43 Boy Girl Boy Girl Boy Girl Boy Girl Boy Boy Boy Boy
44 Boy Boy Girl Boy Boy Boy Girl Boy Girl Boy Girl Girl
45 Girl Boy Boy Girl Girl Girl Boy Girl Boy Girl Boy Boy