Birthday Horoscope Lab

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Your Zi Wei Dou Shu chart,
free.

The 14 major stars and 12 palaces from your birth date and hour, with your BaZi chart in the next tab.

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Your birth details

SexSets the direction of your Luck Pillars

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How to read your chart

The ten Heavenly Stems

The five elements, each in a yang and a yin form. Your Day Master is the stem of your day pillar.

甲 Jia — Yang Wood
The great tree. Upright and principled, you grow steadily toward the light and naturally become the one others lean on.
乙 Yi — Yin Wood
The flowering vine. Flexible and diplomatic, you connect people and thrive by adapting — quietly tougher than you look.
丙 Bing — Yang Fire
The sun. Warm, open and generous, you light up a room and lead best when you are seen.
丁 Ding — Yin Fire
The candle flame. Sensitive and passionate inside, you guide others one-to-one and shine in a craft you master.
戊 Wu — Yang Earth
The mountain. Steady and trustworthy, you give others a sense of safety; reliability is your superpower.
己 Ji — Yin Earth
The fertile field. Nurturing and practical, you grow people and projects patiently until they bear fruit.
庚 Geng — Yang Metal
Forged steel. Decisive and action-driven, you cut through problems and come alive under pressure.
辛 Xin — Yin Metal
The polished jewel. Refined and perceptive, you have a strong sense of beauty — experience polishes you brighter.
壬 Ren — Yang Water
The ocean. Big-hearted and free-spirited, you move with wisdom and momentum and carry others along.
癸 Gui — Yin Water
Rain and dew. Thoughtful and gentle, you read people deeply and nourish everything you touch.
The twelve Earthly Branches

Each branch matches a zodiac animal, a month, a direction and a two-hour period, and holds hidden stems.

子 Zi
Rat
丑 Chou
Ox
寅 Yin
Tiger
卯 Mao
Rabbit
辰 Chen
Dragon
巳 Si
Snake
午 Wu
Horse
未 Wei
Goat
申 Shen
Monkey
酉 You
Rooster
戌 Xu
Dog
亥 Hai
Pig
The Ten Gods

How every other stem relates to your Day Master: talents, relationships, money and career.

比肩 Friend
A year to stand on your own feet. Independence rises — great for moving at your own pace and teaming up with equals.
劫財 Rob Wealth
A social, fast-moving year. Friends and rivals spur you on; money flows in and out quickly, so spend with intention.
食神 Eating God
A year of joy and self-expression. Hobbies and creative work bear fruit — a perfect time to start sharing your ideas.
傷官 Hurting Officer
A year of sharp talent. Ideas and expression peak; just choose your words with care when you speak your mind.
偏財 Indirect Wealth
Money and connections move when you move. New networks open doors — say yes to opportunities.
正財 Direct Wealth
Steady effort pays off. Income and daily life stabilise; ideal for saving and long-term plans.
偏官 Seven Killings
A year of challenge and change. Bigger responsibilities arrive, and rising to them makes you much stronger — pace yourself.
正官 Direct Officer
A year of recognition. Status and trust grow; doing things properly is rewarded.
偏印 Indirect Resource
A year of insight and study. Great for learning specialised skills — follow your curiosity.
印綬 Direct Resource
A year of learning and support. Mentors appear and studies go well; rest and prepare for the next leap.
The Twelve Life Stages

The strength of your Day Master in each branch, told as the stages of a life.

長生 Birth
沐浴 Bath
冠帯 Youth
建禄 Prosperity
帝旺 Peak
衰 Decline
病 Sickness
死 Death
墓 Tomb
絶 Severance
胎 Conception
養 Nurture
The 14 major stars of Zi Wei Dou Shu

The major stars set the theme of each palace; the stars in your Life palace describe your core character.

紫微 Zi Wei
The Emperor star — dignity, leadership and the capacity to stand at the top.
天機 Tian Ji
The Strategist — quick thinking, planning and adaptability.
太陽 Tai Yang
The Sun — generosity and fairness; luck grows as you serve others.
武曲 Wu Qu
The General of Wealth — decisiveness and strong practical money sense.
天同 Tian Tong
The Child of Fortune — gentle, easy-going and well-liked.
廉貞 Lian Zhen
The Upright — passion with principles; loyal and determined.
天府 Tian Fu
The Treasury — stability and protection of wealth and people.
太陰 Tai Yin
The Moon — refined sensitivity; ties to home, property and beauty.
貪狼 Tan Lang
The Charmer — talent, charisma and many interests.
巨門 Ju Men
The Gate of Words — speech, analysis and teaching.
天相 Tian Xiang
The Minister — mediation, contracts and supportive leadership.
天梁 Tian Liang
The Elder — protection, mentoring and helping those in need.
七殺 Qi Sha
The Warrior — courage and drive to carve your own path.
破軍 Po Jun
The Vanguard — the power to break the old and rebuild anew.
The twelve palaces

The twelve squares of the chart are twelve areas of life.

命宮 Life
兄弟 Siblings
夫妻 Spouse
子女 Children
財帛 Wealth
疾厄 Health
遷移 Travel
交友 Friends
官禄 Career
田宅 Property
福徳 Spirit
父母 Parents
The Four Transformations

Set by your birth-year stem, they change how four stars behave.

化禄 Hua Lu
Prosperity
化権 Hua Quan
Power
化科 Hua Ke
Fame
化忌 Hua Ji
Obstacle

About this tool

BaZi, or the Four Pillars of Destiny, turns the year, month, day and hour of your birth into eight Chinese characters — four Heavenly Stems and four Earthly Branches — and reads your nature and the timing of your life from how their five elements interact. Zi Wei Dou Shu, or Purple Star Astrology, places 14 major stars into 12 palaces that stand for different areas of life.

Calculations use astronomically computed solar terms and were cross-checked against several independent engines. If you choose a city, your local clock time is converted for time zone and historical daylight saving, then to true solar time using longitude and the equation of time. The 23:00 hour is treated as the Zi hour of the same day. Schools differ on a few details.

Birthday horoscopes for all 366 days › · The ten Day Masters › · The Ten Gods › · The 14 major stars › · Zi Wei Dou Shu calculator ›