Kua number calculator
Your Kua number tells you which compass directions support you and which to avoid — for your desk, bed, front door and the way you face while working.
Result
Example — enter your own details and press Calculate.
Favourable directions
- ESheng Qi 生气
Success, wealth and vitality — the best direction - SETian Yi 天医
Health, healing and helpful people - NYan Nian 延年
Longevity, harmony and good relationships - SFu Wei 伏位
Stability, clarity and personal growth
Unfavourable directions
- NEHuo Hai 祸害
Mishaps, irritations and minor obstacles - WWu Gui 五鬼
Five Ghosts — quarrels, fire and theft - SWLiu Sha 六煞
Six Killings — scandal, legal trouble and setbacks - NWJue Ming 绝命
Total Loss — the most harmful direction
How the Kua number is calculated
The Kua number follows the nine-year Luo Shu cycle of the Chinese year of birth. For men it is (11 − year mod 9) mod 9, for women (year mod 9 + 4) mod 9, reading 0 as 9. A result of 5 has no trigram and becomes 2 for men and 8 for women. The formula works for every century — including births from 2000 on, which many calculators get wrong.
Kua 1, 3, 4 and 9 belong to the East group (favourable: N, S, E, SE); Kua 2, 6, 7 and 8 to the West group (favourable: NE, W, NW, SW). The four favourable stars are Sheng Qi (success), Tian Yi (health), Yan Nian (relationships) and Fu Wei (stability).
Use it in your app
This calculator is the GET /api/v2/feng-shui/kua endpoint of the Feng Shui API. Get a free key, then:
curl -H "X-API-Key: $FENGSHUI_API_KEY" \ "https://fengshui-api.com/api/v2/feng-shui/kua?date=1985-03-15&gender=female"
Full reference in the API docs; ready-to-run programs in 8 languages on the code examples page.
Frequently asked questions
Should I use the lunar new year or Li Chun?
The original eFengShui tables use the lunar new year (the default). Many feng shui schools use Li Chun (about 4 February) — switch the "Year starts at" option if your teacher does.
How do I use my directions?
Sit facing your Sheng Qi direction at work, sleep with the top of your head pointing to Tian Yi or Yan Nian, and avoid facing Jue Ming.
Is this calculator free?
Yes. The web calculator needs no account. For automated use, create a free account to get an API key.
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