Feng Shui Calculator
Most people arrive at a feng shui calculator page wanting one specific thing: their Kua number. They've read that it determines which directions are lucky and which aren't, and they want the number — fast. This page delivers that. But it also delivers something more important: an explanation of what the number means, what to actually do with it, and — critically — where a Kua number calculation becomes insufficient and a professional reading becomes necessary.
Kua Number: The Core Calculation
Your Kua number (命卦, ming gua) is the personal direction number used in the Eight Mansions (八宅) system of feng shui. It assigns you to either the East Group (Kua 1, 3, 4, 9) or the West Group (Kua 2, 6, 7, 8). Each group has four favorable directions and four unfavorable directions. The feng shui kua number determines which way your bed, desk, and stove should face, and which entrance direction supports you best.
The feng shui numbers calculation for Kua: take your birth year, sum the last two digits, reduce to a single digit. A good feng shui calculator handles the Chinese solar year boundary automatically. take your birth year (Chinese solar year — if born before February 4, use the previous year). For males: sum the last two digits, reduce to a single digit, subtract from 10. For females: sum the last two digits, reduce to a single digit, add 5. The result is your Kua number (Kua 5 males use Kua 2; Kua 5 females use Kua 8). Example: male born 1985. 8+5=13, 1+3=4, 10-4=6. Kua 6, West Group. This feng shui calculator method works for most cases; post-2000 births and certain edge cases need adjusted formulas.
What Your Kua Number Gives You
Once you have your feng shui numbers Kua, you get four favorable directions: Sheng Qi (生炁, best overall — use for bed and desk facing), Tian Yi (天醫, health — use when recovering from illness), Yan Nian (延年, relationships — use for bed if partnership is the priority), and Fu Wei (伏位, stability — use for calming energy).
You also get four unfavorable directions: Huo Hai (禍害, minor obstacles), Wu Gui (五鬼, quarrels/fire-related incidents), Liu Sha (六煞, relationship difficulties), and Jue Ming (絕命, most unfavorable — avoid for bed and desk facing). The feng shui directions from Kua calculation apply to where you face while stationary — sleeping, working, eating, recovering. They do not apply to rooms you walk through or spend brief time in.
The practical application: your bed should face one of your four favorable directions, ideally Sheng Qi or Yan Nian. Your desk should face Sheng Qi or Fu Wei (stability for focused work). Your front door is ideal if it faces one of your favorable directions, but house orientation is structural — you can't rotate a house. If your front door faces an unfavorable direction, compensate with bed and desk directions inside.
Beyond Kua: Other Feng Shui Calculations
The feng shui calculator category extends beyond Kua numbers. Flying Star calculations map the energy chart of a house based on facing direction, construction period, and annual star movements. These calculations require precise compass readings (24 Mountains level) and are typically done by professionals — the math is straightforward, but the input measurements need professional-grade accuracy.
The Five Element balance calculation assesses whether a room's sector has a productive or destructive element relationship between the room's function and the sector's element. A kitchen (Fire) in the northwest (Metal) scores as Fire melts Metal — a structural clash. A bedroom (yin, passive) in the east (Wood, active growth) requires moderation but is not inherently problematic. These element calculations add precision to room-by-room assessments.
The feng shui chart that combines Kua, Flying Star, and element calculations is what professional assessments provide. Each calculation is individually straightforward; integrating them into coherent room-specific recommendations is the skill that separates a feng shui calculator app from a professional reading. The feng shui chart that combines Kua, Flying Star, and element calculations is what a complete professional feng shui calculator assessment provides.
FAQ
Accurate for basic Kua number if they use the correct formula and account for Chinese New Year (not January 1) as the year boundary. Inaccurate for gender-adjusted Kua 5 (males→2, females→8) and for post-2000 births if they don't adjust the formula. Most feng shui kua number calculators are correct for pre-2000 births; verify the formula for your birth year.
Take the second-best favorable direction that faces open space. A feng shui directions rule: spatial reality always overrides personal direction. Facing your best direction into a wall is worse than facing your second-best direction into an open room. Your Kua directions are preferences, not absolutes.
Yes — and this is common. Couples often have different Kua numbers and different favorable directions. The solution: orient the bed to face the direction that supports the person with the greater sleep sensitivity or health priority. Compromise on the exact angle if needed — 15 degrees off ideal is still in the favorable mountain.
A feng shui chart from a professional provides the integrated view — Kua + Flying Star + Bagua + element balance — that self-calculation cannot provide because the layers must be interpreted together, not separately. Self-calculate for preliminary direction awareness. Professional charts for room-level decisions.
Next Step
A Kua number calculator gives you personal directions. A professional consultation integrates those directions with your house's Flying Star chart, Bagua overlay, and room-specific constraints.
Book a Home Feng Shui Consultation*A consultation combines Kua directions, Flying Star chart, Bagua overlay, and element balance — turning calculated numbers into room-specific recommendations.*
Get a professional assessment that applies these principles to your specific space — not generic advice.
A Home Feng Shui Consultation evaluates your home's structure, orientation, Bagua overlay, and room-by-room energy distribution. Specific recommendations based on your actual floor plan.
- Complete floor plan analysis with Bagua overlay and Flying Star chart
- Room-by-room recommendations based on compass sectors and personal Kua directions
- Structural, furniture, element, and annual adjustment plan — all four layers