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Chinese Gender Calendar
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Chinese gender calendar 2017

This chart is a game. The mother’s age and the conception date cannot reliably predict a baby’s sex.

Lunar New Year · 13 lunar-month periods in this Gregorian year
Download PDF · 2017

Two A4 landscape pages: the chart, then the date ranges and instructions.

B = BoyG = Girl

Scroll horizontally to see every month. The age column stays visible.

Gender chart by nominal lunar age and conception period
Lunar ageLunar month 122016 – Lunar month 12017 – Lunar month 22017 – Lunar month 32017 – Lunar month 42017 – Lunar month 52017 – Lunar month 62017 – Lunar month 62017 · Repeated month – Lunar month 72017 – Lunar month 82017 – Lunar month 92017 – Lunar month 102017 – Lunar month 112017 –
18BBBGBBBBBBBBB
19BGBBGBBBBBBBB
20BBGBBGBBBBBBB
21BGBGBBGGBBBBB
22BBGBGBBBGBBBB
23BGBGBGBBBGBBB
24BBGBGBGGBBGBB
25BGBGBGBBGBBGB
26BBGBGBGGBGBBG
27GGBGBGBBGBGBB
28BBGBGBGGBGBGB
29BGBGBGBBGBGBG
30GBGBGBGGBGBGB
31BGBGBGBBGBGBG
32GBGBGBGGBGBGB
33BGBGBGBBGBGBG
34GBGBGBGGBGBGB
35BGBGBGBBGBGBG
36GBGBGBGGBGBGB
37BGBGBGBBGBGBG
38GBGBGBGGBGBGB
39BGBGBGBBGBGBG
40GBGBGBGGBGBGB
41BGBGBGBBGBGBG
42GBGBGBGGBGBGB
43BGBGBGBBGBGBG

How to read this calendar

  1. Find the estimated conception date in the Gregorian date ranges. The columns follow lunar months, so they do not start on the first day of each Gregorian month. The first and last periods are limited to the selected calendar year.
  2. Use the mother’s nominal lunar age at conception: conception lunar year minus birth lunar year, plus one. Under this convention, age increases at Lunar New Year rather than on a birthday. The date-based calculator can work it out for you.
  3. Read the cell where that age row meets the conception-period column. The letter gives the result of the game; it does not give a probability.

Use the date-based calculator

Lunar months and Gregorian date ranges

Lunar monthLunar yearGregorian dates
122016 –
12017 –
22017 –
32017 –
42017 –
52017 –
62017 –
6 · Repeated month2017 –
72017 –
82017 –
92017 –
102017 –
112017 –

Dates and method

This is the same 26-row chart used by our calculator, for nominal ages 18–43. Its historical origin is undocumented. A repeated lunar month uses the same result column as the regular month.

The Hong Kong Observatory publishes Gregorian–lunar conversion tables. They provide a reference for dates, not evidence for the gender chart.

Hong Kong Observatory · 2017

Chinese gender calendar: history and legends