kua number calculator

What Is a Kua Number?

A Kua number is a personal number used in traditional Feng Shui to identify favorable and less favorable directions for sleeping, working, and arranging space. It is based on your birth year and gender (according to classical formulas), and it places you into either the East Group or the West Group.

People often use their Kua number when deciding bed orientation, desk direction, or even where to sit for focus and clarity. While Feng Shui is a traditional practice rather than modern science, many people find it helpful as a framework for intention and lifestyle design.

How This Kua Number Calculator Works

Step 1: Determine the Feng Shui year

This calculator can apply the common Li Chun adjustment: if your birthday falls before February 4, your Feng Shui year is treated as the previous year. You can turn this option on or off in the calculator.

Step 2: Reduce the birth year digits

We take the last two digits of the year, add them, and reduce to a single digit. Example: 1987 → 8 + 7 = 15 → 1 + 5 = 6.

Step 3: Apply gender + century rule

• Born before 2000: Male = 10 − reduced digit, Female = reduced digit + 5
• Born in/after 2000: Male = 9 − reduced digit, Female = reduced digit + 6
• If result reduces to 5, use 2 for male and 8 for female.

East Group vs West Group

Your final Kua number determines your group:

• East Group: 1, 3, 4, 9
• West Group: 2, 6, 7, 8

In classical practice, East Group people generally benefit from East-oriented directions, while West Group people are advised to favor West-oriented directions.

Quick Kua Reference Table

Kua Number	Element	Group
1	Water	East Group
2	Earth	West Group
3	Wood	East Group
4	Wood	East Group
6	Metal	West Group
7	Metal	West Group
8	Earth	West Group
9	Fire	East Group

Practical Ways to Use Your Kua Number

Bedroom setup

Try orienting your bed so your head points toward one of your favorable directions. Many people begin with the direction linked to better rest and stability.

Desk and productivity

If possible, face a favorable direction while working. Even small changes can help create a stronger sense of flow and focus in your daily routine.

Personal reflection

Whether or not you follow Feng Shui strictly, your Kua profile can be a useful prompt for intentional living: better sleep, fewer distractions, and clearer priorities.

Important Notes

• Different schools of Feng Shui may use slightly different methods.
• This calculator follows a widely used modern/classical formula.
• Use results as guidance rather than absolute rules.

If you'd like, I can also create an advanced version with a full direction chart for each Kua number and room-by-room suggestions.