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Chinese Gender Calendar

Row 18 of 18–45

Chinese Gender Chart: Lunar Age 18

At lunar age 18 the traditional chart predicts a boy in 10 of the 12 lunar months and a girl in 2. Here is the full row, what makes it different from the rows either side of it, and how to tell whether 18 is actually your lunar age.

Month 1
Girl
Month 2
Boy
Month 3
Girl
Month 4
Boy
Month 5
Boy
Month 6
Boy
Month 7
Boy
Month 8
Boy
Month 9
Boy
Month 10
Boy
Month 11
Boy
Month 12
Boy

What row 18 says

If the mother’s lunar age at conception is 18, the traditional chart predicts:

  • Boy in lunar months 2, 4, 5, 6, 7, 8, 9, 10, 11 and 12
  • Girl in lunar months 1 and 3

So this row leans boy, at 10 months out of twelve. Across the whole chart the average row gives 5.9 boy months, and the extremes are row 18 with 10 boy months and row 21 with 1.

The longest unbroken stretch in this row is 9 consecutive months of boy, running from lunar month 4 to 12.

One thing worth repeating, because it is where most people go wrong: these are lunar months. Lunar month 1 begins on Chinese New Year, which falls between 21 January and 20 February, so it never lines up with January. The table further down converts them into real 2026 dates.

How row 18 differs from its neighbours

Rows next to each other on this chart are not gentle variations of one another. Being off by a single year of lunar age changes the answer in a large share of months, which is exactly why the Chinese New Year cutoff matters so much:

  • Against lunar age 19, it flips in 7 of 12 months: lunar months 1, 2, 3, 4, 5, 11 and 12.

If a calculator works out your lunar age with a simple “add one to your age” rule instead of checking Chinese New Year, it can land you on the wrong row entirely, and as the numbers above show, a wrong row is not a near miss.

Are you lunar age 18?

Lunar age is not your ordinary age. You count as one year old on the day you are born, and everyone gains a year together on Chinese New Year rather than on their own birthday. So lunar age 18 does not map onto a single Gregorian birth year; it maps onto a lunar year that starts and ends on Chinese New Year.

Birth date ranges that give a lunar age of 18 in each reference year
Lunar age 18 duringBorn betweenLunar yearZodiac
202626 Jan 2009 – 13 Feb 20102009Ox
202714 Feb 2010 – 2 Feb 20112010Tiger
20283 Feb 2011 – 22 Jan 20122011Rabbit
202923 Jan 2012 – 9 Feb 20132012Dragon

Notice that each window starts on a Chinese New Year, not on 1 January. Someone born in mid-January 2010 still belongs to lunar year 2009, because Chinese New Year had not arrived yet. That single detail is the most common cause of a wrong result.

Lunar month 2026 dates at this age

Chinese New Year 2026 falls on 17 February 2026. Find your conception date in the middle column and read the prediction on the right.

Prediction at lunar age 18 for each lunar month of 2026
Lunar month2026 datesPrediction
117 Feb – 18 MarGirl
219 Mar – 16 AprBoy
317 Apr – 16 MayGirl
417 May – 14 JunBoy
515 Jun – 13 JulBoy
614 Jul – 12 AugBoy
713 Aug – 10 SeptBoy
811 Sept – 9 OctBoy
910 Oct – 8 NovBoy
109 Nov – 8 DecBoy
119 Dec – 7 JanBoy
128 Jan – 5 FebBoy

Check your own dates

Do not assume lunar age 18 is yours. It depends on where your birthday sits relative to Chinese New Year, and on which lunar month your conception date falls in. Enter your real dates below and both are worked out for you, including leap months.

What date do you know?

Used to work out her lunar age

Roughly two weeks after your last period started

Dates from 1900-01-31 to 2101-01-28 are supported. Nothing you type leaves your browser The whole calculation runs on this page.

Questions about lunar age 18

Which months predict a boy at lunar age 18?

At lunar age 18 the chart predicts a boy for lunar months 2, 4, 5, 6, 7, 8, 9, 10, 11 and 12. These are lunar months counted from Chinese New Year, not January to December.

What birth years give a lunar age of 18?

To be lunar age 18 during 2026, you were born in lunar year 2009, between 26 January 2009 and 13 February 2010, the year of the Ox. To be lunar age 18 during 2027, you were born in lunar year 2010, between 14 February 2010 and 2 February 2011, the year of the Tiger. To be lunar age 18 during 2028, you were born in lunar year 2011, between 3 February 2011 and 22 January 2012, the year of the Rabbit. To be lunar age 18 during 2029, you were born in lunar year 2012, between 23 January 2012 and 9 February 2013, the year of the Dragon.

What changes if my lunar age is 18 instead of 17?

Lunar age 18 is the first row of the chart, so there is no younger row to compare against.