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Chinese Gender Calendar
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Chinese gender calendar 2033

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 · 2033

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 122032 – Lunar month 12033 – Lunar month 22033 – Lunar month 32033 – Lunar month 42033 – Lunar month 52033 – Lunar month 62033 – Lunar month 72033 – Lunar month 82033 – Lunar month 92033 – Lunar month 102033 – Lunar month 112033 – Lunar month 112033 · Repeated month –
18BBBGBBBBBBBBB
19BGBBGBBBBBBBB
20BBGBBGBBBBBBB
21BGBGBBGBBBBBB
22BBGBGBBGBBBBB
23BGBGBGBBGBBBB
24BBGBGBGBBGBBB
25BGBGBGBGBBGBB
26BBGBGBGBGBBGG
27GGBGBGBGBGBBB
28BBGBGBGBGBGBB
29BGBGBGBGBGBGG
30GBGBGBGBGBGBB
31BGBGBGBGBGBGG
32GBGBGBGBGBGBB
33BGBGBGBGBGBGG
34GBGBGBGBGBGBB
35BGBGBGBGBGBGG
36GBGBGBGBGBGBB
37BGBGBGBGBGBGG
38GBGBGBGBGBGBB
39BGBGBGBGBGBGG
40GBGBGBGBGBGBB
41BGBGBGBGBGBGG
42GBGBGBGBGBGBB
43BGBGBGBGBGBGG

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
122032 –
12033 –
22033 –
32033 –
42033 –
52033 –
62033 –
72033 –
82033 –
92033 –
102033 –
112033 –
11 · Repeated month2033 –

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 · 2033

Chinese gender calendar: history and legends