Chinese Gender Calendar 2027 — Chart & Calculator
The 2027 Chinese lunar year starts on 6 February 2027 and runs to 25 January 2028. To read the Chinese gender chart for a 2027 conception you need two numbers: your lunar age and the lunar month you conceived. The calculator below works both out from real lunar tables. Fun to try, but a study of 2.8 million births found it no better than a coin toss.
2027 at a glance
- Lunar year 2027 (Year of the Goat): 6 February 2027 to 25 January 2028.
- No leap month in 2027, so there are exactly 12 lunar months.
- January 2027 is not lunar month 1. Conceptions from 1 January to 5 February 2027 still belong to the 2026 lunar year.
- Due-date mode: the calculator counts back 266 days (38 weeks) from your due date to estimate conception.
2027 lunar months and their start dates
Each lunar month begins on the day of the new moon, so the months are 29 or 30 days long and drift against the Western calendar. This is the table the calculator uses for 2027. A lunar month runs from its start date up to the day before the next month begins.
| Lunar month | Starts | Ends |
|---|---|---|
| 1st lunar month | 6 Feb 2027 | 7 Mar 2027 |
| 2nd lunar month | 8 Mar 2027 | 6 Apr 2027 |
| 3rd lunar month | 7 Apr 2027 | 5 May 2027 |
| 4th lunar month | 6 May 2027 | 4 Jun 2027 |
| 5th lunar month | 5 Jun 2027 | 3 Jul 2027 |
| 6th lunar month | 4 Jul 2027 | 1 Aug 2027 |
| 7th lunar month | 2 Aug 2027 | 31 Aug 2027 |
| 8th lunar month | 1 Sep 2027 | 29 Sep 2027 |
| 9th lunar month | 30 Sep 2027 | 28 Oct 2027 |
| 10th lunar month | 29 Oct 2027 | 27 Nov 2027 |
| 11th lunar month | 28 Nov 2027 | 27 Dec 2027 |
| 12th lunar month | 28 Dec 2027 | 25 Jan 2028 |
Dates from the Hong Kong Observatory Gregorian–Lunar conversion tables for 2027 and 2028, cross-checked with three open-source lunar calendar libraries (lunardate, LunarCalendar and zhdate for Python). Every date agrees across all four.
If you conceived between 1 January and 5 February 2027, you are still in the 12th month of the 2026 lunar year, which began on 8 January 2027. Use the main Chinese gender calendar page for that window, or simply enter your dates in the calculator above: it handles both years.
How lunar age is calculated
The chart does not use your age in years. It uses the traditional Chinese "nominal" age: you are one at birth, and you gain a year at each Lunar New Year rather than on your birthday. So the rule is simple once you know which lunar year each date falls in:
Lunar age = lunar year of conception − lunar year of your birth + 1
The catch is the word "lunar". If you were born in January or early February, before that year's Lunar New Year, your lunar birth year is the previous year.
Worked example
- Mum's birthday: 14 March 1996. Lunar New Year 1996 fell on 19 February 1996, so she was born in lunar year 1996.
- Conception: 20 April 2027. That is after 6 February 2027, so it is lunar year 2027. The 3rd lunar month began on 7 April 2027, so it is lunar month 3.
- Lunar age: 2027 − 1996 + 1 = 32. Her Western age on that day is 31.
- Chart cell: row 32, month 3 reads Boy on the chart below.
Now change one thing. Suppose the same mum was born on 10 February 1996, nine days before that Lunar New Year. Her lunar birth year becomes 1995, and for the same April 2027 conception her lunar age is 2027 − 1995 + 1 = 33, two years above her Western age. That single shift moves her to a different row of the chart, and row 33, month 3 reads Girl: the same conception date gives the opposite answer.
Why Gregorian January is not lunar month 1
A lot of charts online quietly treat "conceived in March" as "lunar month 3". That is not how the tradition works. Lunar month 1 of 2027 starts on 6 February 2027, not 1 January. A conception on 20 January 2027 falls in the 12th lunar month of the 2026 lunar year, and the lunar age is counted within 2026 as well. In 2027 the Western month and the lunar month number differ for most dates: from 6 February to 7 March it is month 1, from 8 March it is month 2, and so on.
The full Chinese gender chart
Find your lunar age in the left column, then read across to your lunar month. The grid itself is the same every year; only the dates that convert into it change. This is exactly the chart our calculator looks up. Several versions of the chart circulate online. Ours matches the chart published by prokerala.com and chinesegendercalendar.org cell for cell; other versions can differ in a few cells, so a different website may occasionally give you a different answer.
| 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 | B | 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 | G | B | B | G | B | G | B | B | B | G |
| 24 | B | G | B | B | G | B | B | G | G | G | G | G |
| 25 | G | B | B | G | G | B | G | B | B | B | B | B |
| 26 | B | G | B | G | G | B | G | B | G | G | G | G |
| 27 | G | B | G | B | G | G | B | B | B | B | G | B |
| 28 | B | G | B | G | G | G | B | B | B | B | G | G |
| 29 | G | B | G | G | B | B | B | B | B | G | G | G |
| 30 | B | G | G | G | G | G | G | G | G | G | B | B |
| 31 | B | G | B | G | G | G | G | G | G | G | G | B |
| 32 | B | G | B | G | G | G | G | G | G | G | G | B |
| 33 | G | B | G | B | G | G | G | B | G | G | G | B |
| 34 | B | G | B | G | G | G | G | G | G | G | B | B |
| 35 | B | B | G | B | G | G | G | B | G | G | B | B |
| 36 | G | B | B | G | B | G | G | G | B | B | B | B |
| 37 | B | G | B | B | G | B | G | B | G | B | G | B |
| 38 | G | B | G | B | B | G | B | G | B | G | B | G |
| 39 | B | G | B | B | B | G | G | B | G | B | G | G |
| 40 | G | B | G | B | G | B | B | G | B | G | B | G |
| 41 | B | G | B | G | B | G | B | B | G | B | G | B |
| 42 | G | B | G | B | G | B | G | B | B | G | B | G |
| 43 | B | G | B | G | B | G | B | G | B | B | B | B |
| 44 | B | B | G | B | B | B | G | B | G | B | G | G |
| 45 | G | B | B | G | G | G | B | G | B | G | B | B |
B = boy, G = girl. Rows are the mother's lunar age at conception (18–45); columns are lunar months 1–12. On a narrow screen, swipe the table sideways.
How accurate is the 2027 chart?
The chart has been tested properly, once, on a very large scale. Villamor and colleagues (2010) took 2,840,755 singleton births in Sweden between 1973 and 2006, worked out each mother's lunar age and month of conception, and compared the chart's prediction with the baby's actual sex.
They measured agreement with a statistic called kappa, where 0 means no better than chance. The overall kappa was 0.0002 (95% CI −0.0009 to 0.0014). In a check on 1,000 births using a website's own lunar-date algorithm, kappa was −0.02. Skipping the lunar conversion altogether did not change the result either. The authors concluded that the method is "no better at predicting the sex of a baby than tossing a coin".
That last finding is worth a moment. Getting your lunar age and month right makes you faithful to the tradition. It does not make the answer more likely to be correct. Accuracy did not vary by year of conception or maternal age, so there is no reason to think 2027 will be any different. More detail is in our look at Chinese gender calendar accuracy.
If you want to know your baby's sex, the answer comes from medical testing: a prenatal blood test in the first trimester, if your provider offers it, or the mid-pregnancy anatomy scan. Our methods compared guide sets the folk methods against those tests.
How BabyPeek does it
In the BabyPeek app, the Chinese calendar is one playful signal among several — never the answer on its own. The app runs it alongside Nub, Ramzi and Skull theory and a read of your scan, then shows a majority verdict with an honest confidence level.
Frequently asked questions
Sources
- Villamor E, Dekker L, Svensson T, Cnattingius S. Accuracy of the Chinese lunar calendar method to predict a baby's sex: a population-based study. Paediatr Perinat Epidemiol. 2010;24(4):398–400. PubMed
- Hong Kong Observatory. Gregorian–Lunar Calendar Conversion Table of 2027 and of 2028. 2027 table · 2028 table
Written by the BabyPeek editorial team from the sources above. How we research and write. For entertainment, not medical advice.