Kua 9 in the Eight Mansions system
In the Eight Mansions (Ba Zhai) school of feng shui, Kua 9 is one of the East group numbers, along with kua 1, 3 and 4. Its element is fire, and its traditional life palace is in the south. The life palace is the sector that gives the Fu Wei (personal growth) star.
The method uses your birth year and gender. These directions are a traditional guide for choosing where to sit, sleep or work. They are not a prediction of what will happen to you.
How to check if you are Kua 9
Reduce the last two digits of your birth year to a single digit. Then apply the formula for your gender:
- Born before 2000: men subtract the result from 10, and women add 5.
- Born in 2000 or later: men subtract the result from 9, and women add 6.
Two examples that give Kua 9:
- A man born in 1964: 6 + 4 = 10, then 1 + 0 = 1. Then 10 − 1 = 9. Kua 9.
- A woman born in 2003: 0 + 3 = 3. Then 3 + 6 = 9. Kua 9.
The Chinese solar year starts around 3 to 5 February, not on 1 January. If your birthday falls in early February, check the exact date for your birth year before you use the formula. The full kua number calculation walks through the steps and the edge cases.
Kua 9’s favourable sectors
Kua 9 has four favourable sectors:
- East: Sheng Chi (growth and prosperity). The strongest of the four. Traditionally, use it for work, study and important decisions when you can.
- Southeast: Tian Yi (health and recovery). Traditionally a good sector for rest and recuperation.
- North: Yan Nian (relationships and longevity). Linked with family and close relationships.
- South: Fu Wei (stability and personal growth). This is the life palace for Kua 9.
Kua 9’s unfavourable sectors
The other four directions are the unfavourable ones:
- Northwest: Jue Ming (total loss). The most serious sector in the chart. Avoid facing it or sleeping with your head toward it.
- Southwest: Liu Sha (six killings). Traditionally linked with setbacks and disagreements.
- West: Wu Gui (five ghosts). Traditionally linked with gossip and loss.
- Northeast: Huo Hai (mishaps and disputes). Traditionally a sector to spend little time in for work or sleep.
Keep the kitchen and bathroom in these sectors when the room layout allows, because the Eight Mansions tradition says this reduces their effect.
Home layout tips for Kua 9
- Sleep. Where the room allows, point your head toward the East, which is the Sheng Chi sector. Keep your head away from the unfavourable sectors.
- Desk and study. Face the East when you work or study. The South suits focused personal work.
- Entrance. If your home has more than one door, use the one in a favourable sector when you can. For more on this, see the front door direction guide.
- Use this as a guide, not a rule. The room layout and the orientation of the house affect the picture. When two people in a home have different favourable sectors, many practitioners suggest a compromise.
Colours for the fire element
Red, orange, pink and purple are the traditional fire colours, so they suit Kua 9. Green is the wood colour, and wood feeds fire in the five-element cycle, so green is traditionally seen as supportive too. Earth tones such as yellow and brown are fed by fire, so they can be used in moderation. Black and blue are water colours. Water controls fire, so many practitioners suggest keeping them to a minimum.
What house number 9 means
People often search for the number 9 in a home address as well. This is a separate idea from the kua number. In Chinese culture, 9 is often associated with long life and completeness, partly because its sound resembles the word for “long-lasting”. A house number does not change your kua number, and the kua directions apply to you, not to the address.
Kua 9 compatibility
Compatibility in the Eight Mansions tradition is usually explained through the five-element cycle:
- Kua 9 with kua 9: both are fire, so they are generally seen as harmonious.
- Kua 9 with kua 3 and 4 (wood): wood feeds fire, so the support flows toward Kua 9. See the Kua 3 and 4 guide.
- Kua 9 with kua 2 and 8 (earth): fire feeds earth, so Kua 9 is often described as supportive of them. See the Kua 2 and 8 guide.
- Kua 9 with kua 6 and 7 (metal): fire controls metal, so this pairing is often described as harder work. See the Kua 6 and 7 guide.
- Kua 9 with kua 1 (water): water controls fire, so the result depends on balance. See the Kua 1 guide.
For a broader view of the system, see the Eight Mansions overview.
These are traditional guidelines, not scientific findings. Use them as a starting point for arranging a room, not as a verdict on a person.