Tool library
Feng Shui Tools
Interactive calculators grounded in classical sources. Free, no account required. Each tool has its own page with the classical context, use cases, and an inline runner.
Your Personal Kua Number
The compass of your life. 8 directions, 4 favorable, 4 to avoid.
Your Kua number (命卦) is derived from your birth year and gender. It determines which compass directions are personally auspicious for you — independent of the property itself. Most popular Kua calculators skip the classical 立春 Lì Chūn (solar year) correction and return the wrong Kua for anyone born in January or early February. We don't. Enter your month and day and we apply the correction automatically.
Open tool24 Mountains Compass
二十四山 — The foundation of all compass-school feng shui.
The Luo Pan divides 360 degrees into 24 sectors of 15 degrees each. Every sector is named with a Heavenly Stem, Earthly Branch, or corner Trigram. This classification underlies Flying Stars, San He, and all compass-school analysis. Knowing your exact sector is the first step to any serious feng shui reading.
Open toolFlying Stars Natal Chart
玄空飛星 — The energy blueprint of your property.
The Flying Stars chart maps the energy of your property based on when it was built (or last renovated) and which direction it faces. Each of the 9 sectors receives a Mountain Star (health, relationships) and a Water Star (wealth, opportunity). Some combinations are auspicious, others need remedies.
Open toolBagua Map
八卦 — Eight forces of nature, eight areas of life.
The Bagua maps 8 trigrams to 8 compass directions, each governing a different aspect of life. The Later Heaven arrangement (used in feng shui) places Li (Fire) in the South and Kan (Water) in the North. Understanding the Bagua tells you which part of your home influences which area of your life.
Open toolFive Elements Cycle
五行 — The language of feng shui remedies.
Every feng shui remedy works through the Five Elements. Metal weakens Earth stars. Water nourishes Wood. Fire controls Metal. Understanding these relationships is how you turn a feng shui diagnosis into action. This tool shows you exactly which element produces, controls, or drains any other.
Open toolLo Shu Magic Square
洛書 — The mathematical heart of feng shui.
Legend says a turtle emerged from the Lo River carrying this pattern on its shell. The 3x3 grid where every row, column, and diagonal sums to 15 became the foundation of Flying Stars feng shui. The stars fly through the Lo Shu in a specific sequence — this is how natal charts are calculated.
Open toolFour Celestial Animals
四靈 — The armchair that holds your fortune.
The ideal feng shui site sits like a person in an armchair: a mountain behind for support (Tortoise), an open view in front (Phoenix), a protective ridge on the left (Dragon), and a lower ridge on the right (Tiger). This tool lets you score each of the four directions around your property.
Open toolRoom Element Balance
Is your space in harmony? Count and find out.
Every object in a room carries an element: wooden furniture (Wood), candles and red items (Fire), ceramics and stone (Earth), metal frames and white objects (Metal), glass and mirrors (Water). When one element dominates, the room's qi becomes unbalanced. This tool helps you audit and rebalance.
Open toolSolar Exposure Analysis
Which facade gets the most light? The answer shapes your qi.
Sunlight is yang energy. A south-facing facade in the northern hemisphere captures the most winter sun — critical for maintaining yang during the yin season. This tool shows you exactly how many hours of direct light each facade receives across all four seasons.
Open tool24 Solar Terms · 二十四節氣
The real Chinese calendar. Every term, precise to the second, with its classical meaning.
The 24 Jié Qì divide the solar year into fortnightly terms, each marking a 15° arc of the sun's ecliptic motion. Classical Chinese feng shui, agriculture, medicine, and ritual all pivot on these terms — not Gregorian months, not lunar months. We use a verified astronomical library to place each term to the second, then pair it with the classical practice and feng shui guidance drawn directly from Yuè Lìng (月令, Liji) and the other primary-source authorities. Most modern tools give you a date; we give you the term, the element, the yin-yang polarity, the Bazi month branch, and what the ancients actually did on that day.
Open toolBazi Four Pillars
Your destiny chart in eight characters. The classical Chinese answer to who you are.
Bazi (八字, "eight characters") is the Four Pillars of Destiny — Year, Month, Day, and Hour, each expressed as a Heavenly Stem and Earthly Branch from the sexagenary cycle. Together these eight characters reveal your Day Master (日主, the self-element at the center of your chart), your Five Element constitution, and which elements to nurture or suppress for balance. Classical Bazi has been practiced in China since the Tang dynasty and is the foundation for everything from career guidance to feng shui element tuning.
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