Front Door Feng Shui by Kua Number: Find Your Best Direction
Compass directions and element colors are useful, but feng shui also has a personalized system that's tailored to you: the Kua number from Eight Mansions feng shui.
The short answer: your Kua number (calculated from your birth year and gender) gives you four "auspicious" directions and four "inauspicious" ones. You can't rotate a house to match them, but you can use them to orient the things you do control — like where you sit, which entry you use, and how you arrange the doorway.
Here's how it works.
What the Kua number tells you
Eight Mansions feng shui divides people into two groups — East and West — based on their Kua number, and gives each person four favorable directions and four unfavorable ones. The most important favorable direction is sheng chi, the "success" direction, which practitioners align with the front door, the desk, and the bed.
The four auspicious directions, in order of strength:
| Direction | Name | Best for |
|---|---|---|
| Sheng chi | Success | Career, prosperity, the front door |
| Tien yi | Health | Recovery, vitality, the bedroom |
| Nien yen | Relationships | Love, family harmony |
| Fu wei | Personal growth | Stability, inner peace |
Each has a compass direction unique to your Kua number. Get your number first — run your birth year through the Kua number calculator to find all four.
Applying it to a front door you can't move
Here's the honest limitation, stated plainly: you cannot rotate your house. If your front door faces a direction that isn't your sheng chi, that's not a failure — it's just reality, and feng shui has always accepted it.
What you can do with your Kua number at the entry:
| What you control | How to use your Kua direction |
|---|---|
| Which entry you use | Use a side or back door facing your sheng chi as your main door |
| Where you stand to greet guests | Position yourself facing your sheng chi direction |
| The doormat's design or orientation | A subtle nod to your lucky element's color |
| Where the entry mirror points | Angle it toward your sheng chi direction |
The most practical use is the first one: if you have multiple doors, favor the one that faces your sheng chi direction as your daily entrance. It costs nothing and aligns your routine with your number.
Match your door color to your Kua element
If you want to layer color on top of direction, use your Kua number's element to pick a door color. Each Kua number maps to one of the five elements:
| Kua numbers | Element | Supportive door colors |
|---|---|---|
| 1 | Water | Black, deep blue |
| 2, 5, 8 | Earth | Beige, tan, terracotta |
| 3, 4 | Wood | Green, teal |
| 6, 7 | Metal | White, gray, gold |
| 9 | Fire | Red, orange, purple |
For the full element-color logic, see our front door color guide. The two systems stack cleanly: pick a color you like from your Kua element's range.
What NOT to do
| What to avoid | Why |
|---|---|
| Don't remodel around a compass reading | If aligning with your sheng chi direction makes the entry worse — cluttered, dark, awkward — the approach always loses. See our door direction guide for what matters more. |
| Don't obsess over the inauspicious directions | They're warnings, not curses. Knowing them just tells you where to spend *less* time, not where to panic. |
| Don't skip the fundamentals for the personalization | Kua is a refinement layer on top of a clear, working mouth of qi — not a replacement for it. Get the basics right first (our mouth of qi guide). |
The two groups and the directions to avoid
Every Kua number carries four favorable directions and four unfavorable ones, and knowing the second list is as useful as the first for deciding where not to spend time.
| Group | Kua numbers | Directions to be cautious with |
|---|---|---|
| East group | 1, 3, 4, 9 | West, Northwest, Southwest, Northeast |
| West group | 2, 6, 7, 8 | North, South, East, Southeast |
| Both groups | — | The four unfavorable ones are described as less supportive, not harmful |
The important nuance is in the last row. The unfavorable directions are traditionally described as draining or less supportive rather than dangerous, which means the practical guidance is to avoid spending long hours facing one rather than to panic about a door that points at one. A door is where you pass through. A desk is where you sit for years, and the second of those is the one worth orienting.
How the number is worked out
The calculation is short, and following it once makes the system feel less like a black box.
| Step | For a man | For a woman |
|---|---|---|
| One | Take the last two digits of the birth year | Same |
| Two | Add them and reduce to one digit | Same |
| Three | Subtract that digit from 11 | Add 4 to that digit |
| Four | Reduce again if the result is two digits | Same |
| Five | If you reach 5, read it as 2 | If you reach 5, read it as 8 |
Anyone born from 2000 onward follows a different pair of formulas, which is the single most common source of incorrect numbers in circulation. Because the arithmetic changes at a date that is easy to get wrong, the calculator is worth using for your own number even if you understand the method. What the exercise is good for is showing you that the result depends on a fixed input, which is why the four directions do not change as you get older.
When two people share a front door
Most homes have more than one occupant, and two Kua numbers often point in different directions, which raises a fair question.
| Situation | What tends to work |
|---|---|
| Two people, same group | Their good directions overlap, so a shared choice is straightforward |
| Two people, different groups | Use the door for what the door is for, and personalize the interiors |
| An East and a West person sharing a desk area | Orient each workspace separately rather than the room |
| A household that does not care | Nothing, and no reason to introduce the question |
The practical resolution is the distinction between shared and personal space. A front door serves everyone and can only face one way, so it is a poor candidate for personalization. A desk, a chair, or a side of the bed belongs to one person, which makes those the places where a Kua number has something to say. Applying it that way avoids the most common failure mode in this whole system, which is two people quietly competing over an orientation neither of them can change.
When the directions conflict with your layout
The most common outcome of running your number is that it disagrees with the house you actually live in, and the resolution follows a consistent order.
| Conflict | What to prioritize |
|---|---|
| The door cannot face your success direction | Fix the approach and the door's condition first |
| Your desk faces one of the weaker directions | Turn it, if a solid wall behind you allows |
| The bed has to stay exactly where it is | Leave it, and treat sleeping direction as optional |
| A shared corridor or a neighbour's door | Nothing, since the geometry is not yours to change |
| Your number suits a direction the building lacks | Use color and interior arrangement instead |
The ordering in that table is the whole of the practical advice. Anything structural outranks anything personal, and anything shared outranks anything private. A door that faces the wrong way but opens smoothly onto a lit, clear path beats a door in the perfect orientation that sticks and sits in shadow, which is the same trade-off the entryway checklist makes without any reference to birth years at all.
The bottom line
Your Kua number is feng shui's personalization layer: four directions tuned to you. Use it to pick which entry you favor, where you stand, and what color you paint — not to move walls.
The beauty of the Kua system is that it works even when you can't change the house. A door you can't rotate, a color you can choose, a routine you can adjust — those are all levers you already control. Find your four directions, apply the one or two that fit your real layout, and move on. Start with the Kua number calculator to get your number in under a minute.