Chinese Gender Predictor
The Chinese birth chart is a folk tradition that “predicts” a baby's sex from the mother's lunar age and the lunar month of conception. It is a fun cultural custom, not science: its accuracy is about the same as a coin toss. Only medical tests such as an ultrasound scan or a prenatal blood test can tell you your baby's sex.
The full chart
| Lunar age | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 18 | G | B | G | B | B | B | B | B | B | B | B | B |
| 19 | B | G | B | G | G | B | B | G | B | B | G | G |
| 20 | G | B | G | B | B | B | B | B | B | G | B | B |
| 21 | B | G | G | G | G | G | G | G | G | G | G | G |
| 22 | G | B | B | G | B | G | G | B | G | G | G | G |
| 23 | B | B | B | G | B | B | G | G | G | B | B | G |
| 24 | B | G | G | B | B | G | B | G | B | B | G | B |
| 25 | G | B | G | B | G | B | G | B | G | B | B | B |
| 26 | B | B | B | B | B | G | B | G | G | B | G | G |
| 27 | G | G | B | B | G | B | G | G | B | G | B | B |
| 28 | B | B | B | G | G | B | G | B | G | G | B | G |
| 29 | G | B | G | G | B | G | G | B | G | B | G | G |
| 30 | B | B | G | B | G | B | B | B | B | B | B | B |
| 31 | B | B | B | B | G | G | B | G | B | G | G | G |
| 32 | B | G | G | B | G | B | B | G | B | B | G | B |
| 33 | G | B | B | G | G | B | G | B | G | B | B | G |
| 34 | B | B | G | G | B | G | B | B | G | B | G | G |
| 35 | B | G | B | G | B | G | B | G | B | B | G | B |
| 36 | B | G | B | B | B | G | B | B | G | G | G | G |
| 37 | G | G | B | G | G | G | B | G | G | B | B | B |
| 38 | B | B | G | G | B | G | G | B | G | G | B | G |
| 39 | G | G | B | G | G | G | B | G | B | B | G | B |
| 40 | B | B | B | G | B | G | B | G | B | G | G | B |
| 41 | G | G | B | G | B | B | G | G | B | G | B | G |
| 42 | B | G | G | B | B | B | B | B | G | B | G | B |
| 43 | G | B | G | G | B | B | B | G | G | G | B | B |
| 44 | B | G | G | G | B | G | B | B | G | B | G | B |
| 45 | G | B | G | B | G | G | B | G | B | G | B | G |
B = boy, G = girl. Columns are lunar months of conception. Legend says the chart was found in an ancient tomb near Beijing, but its true origin is unknown, and studies have found it no better than chance.