Free BaZi Calculator

| Four Pillars of Destiny
Four Pillars
Five Elements Balance
10-Year Luck Pillars
Annual Pillars

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Your free chart shows the structure. A BaZi Full Reading is a hand-written, 15–20 page PDF that interprets your Day Master, favorable elements, career & wealth pattern, and the next 10 years of Luck Pillars — for you.

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BaZi readings are based on the Chinese solar calendar (Jie Qi). For the most accurate results, provide your exact birth hour. This calculator uses astronomical solar term data for years 1900–2100.

BaZi Full Reading

The calculator gives you the chart.
A Full Reading tells you what it means.

A hand-written, 12–16 page personalized PDF interpreting your Day Master, favorable elements, career & wealth pattern, relationship dynamics, and the next decade of Luck Pillars — delivered to your inbox within 72 hours.

$88 USD · 72-hour delivery · Written by Maggie

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New to BaZi? Learn how the Four Pillars, Five Elements, and Luck Pillars shape your destiny.

What is BaZi? →

How to Read Your Chart

What your free BaZi chart actually shows

BaZi (八字) — also called the Four Pillars of Destiny — is a reading of the exact solar energy present at the moment you were born. The calculator above takes your birth date, time, and gender and returns your chart across four layers: the Four Pillars (Year, Month, Day, Hour), the Five Elements balance, the Ten Gods, and the Luck Pillars. Here is what each layer means, how to read them together, and where to go next once you have your chart.

The Four Pillars

Every BaZi chart has four vertical columns, each made of a Heavenly Stem on top and an Earthly Branch below. The Year Pillar describes your ancestry and the environment you were born into. The Month Pillar describes your formative years, career instincts, and peer relationships. The Day Pillar's top character is your Day Master — your core identity — and the branch below it describes your marriage and private life. The Hour Pillar describes your later years, children, and creative output. Read more on the structure of the Four Pillars.

Your Day Master

Your Day Master is one of ten elemental archetypes — Yang Wood, Yin Wood, Yang Fire, Yin Fire, Yang Earth, Yin Earth, Yang Metal, Yin Metal, Yang Water, Yin Water. It is the single most important character in your chart. Every other stem, branch, element, and Ten God is read in relation to the Day Master. A Yang Fire person reads the same chart completely differently from a Yin Water person. For a deeper introduction, see the ten Day Masters or how Day Masters compare with MBTI types.

The Five Elements balance

BaZi works with five elemental energies — Wood, Fire, Earth, Metal, Water — that produce and control each other in a cycle. The balance chart above counts how strongly each element shows up in your pillars (including hidden stems). A chart with heavy Fire and no Water reads very differently from a chart with heavy Water and no Earth. Your favorable elements are the ones your chart lacks but needs; your unfavorable elements are the ones already in excess. Luck Pillars, Annual Pillars, careers, colors, directions, and even timing of major decisions can all be tuned to your favorable elements. Start with the Five Elements explained.

The Ten Gods

The Ten Gods (十神) are relational labels. They take the raw elemental energy of each stem and describe how it behaves around your Day Master — does it support you, drain you, challenge you, control you, or compete with you? This is the layer that makes BaZi useful for modern life. The career Gods (Direct Officer, Seven Killings), the wealth Gods (Direct Wealth, Indirect Wealth), the creative Gods (Output God, Hurting Officer), the support Gods (Resource, Indirect Resource), and the peer Gods (Friend, Rob Wealth) each describe a specific life theme. The calculator labels your Ten Gods inline on the pillars table so you can see immediately where your career, wealth, and relationships live in your chart.

Your 10-Year Luck Pillars

Luck Pillars (大运) are personal 10-year chapters that unfold from a few years after birth. They are derived from your Month Pillar and gender, and each one brings a Heavenly Stem and an Earthly Branch of its own — effectively handing you a different elemental climate every decade. A Luck Pillar heavy in your favorable elements tends to unlock momentum; one heavy in your unfavorable elements tends to demand discipline. Combined with your Annual Pillar (the energy of each zodiac year), Luck Pillars give you timing — a framework for when to launch, when to harvest, and when to quietly rebuild.

New to Eastern astrology? Start with our free 28-page BaZi Starter Guide — a plain-English walkthrough of every column on your chart above.


How to use this BaZi calculator accurately

The chart above is generated from astronomical solar-term data (Jie Qi), so the math matches any traditional master's chart exactly. What changes accuracy is the quality of your input. A few notes to get the cleanest read.

Enter your true solar birth time, not clock time

BaZi runs on the sun's actual position at your birth longitude. For most people in their country of birth, standard clock time is close enough. But if you were born under daylight saving, near a time-zone border, or at longitudes far from the zone's central meridian, your true solar time may be 15–60 minutes off the clock. That matters because the Hour Pillar changes every two hours — an off-by-one error shifts your entire Hour Pillar. As a rule of thumb, subtract or add roughly 4 minutes per degree of longitude from the time-zone meridian, and remove daylight-saving offsets.

If you don't know your birth hour, choose "Unknown"

A three-pillar BaZi chart — Year, Month, Day — is still a complete and readable chart. You'll have your Day Master, your zodiac animal, your Five Elements balance, and your Luck Pillars. You'll just be missing the private, later-life layer that the Hour Pillar describes. Most people have their birth time documented on their birth certificate or in hospital records; it's worth one phone call to a family member before settling for "Unknown."

The BaZi year starts at Li Chun, not January 1

The BaZi year begins at the solar term Lichun (立春), which falls around February 3–5 each year. If you were born in early January or early February, your BaZi Year Pillar may belong to the previous zodiac year — not the one everyone else was celebrating. This calculator handles the Li Chun boundary automatically, so the year shown here is the correct BaZi year even if it surprises you. Read more on why your zodiac animal might be lying to you.

Reading the chart: what to look at first

  1. Your Day Master — the top character of the Day column. Read this first. Everything else is a modifier.
  2. Your Five Elements balance — which elements are heavy, which are missing, which are dominating. This gives you your favorable and unfavorable elements.
  3. Your Ten Gods — where is your wealth, your career, your creativity, your support? Which are present in your pillars, which are hidden, which are absent?
  4. Your current Luck Pillar — the 10-year column highlighted on the Luck Pillars row. What element is it? Is it supporting your Day Master or challenging it?
  5. The current Annual Pillar — 2026 is a Fire Horse year, and how it lands on your chart depends entirely on your natal elements.

Frequently asked questions

Is this BaZi calculator really free?
Yes. No sign-up, no paywall, no ads. You get the full Four Pillars chart, Day Master, Five Elements balance, Ten Gods, 10-Year Luck Pillars, and Annual Pillars instantly in your browser.
Do I need my exact birth time to use the BaZi calculator?
Ideally yes — the Hour Pillar changes every two hours and reveals your Day Master's private side, career fit, and later-life trajectory. If you don't know your birth hour, select "Unknown" and the calculator will still generate a valid three-pillar chart (Year, Month, Day).
What if I don't know my birth time?
Check your birth certificate, hospital record, or ask a family member — in many countries the time is documented. If it's genuinely unavailable, a three-pillar chart is still highly readable. You'll be missing one of four pillars.
What is the Day Master in my BaZi chart?
The Day Master is the Heavenly Stem of your Day Pillar — one of ten elemental archetypes (Yang/Yin × Wood, Fire, Earth, Metal, Water). It represents you — the core "I" of your chart. Every other pillar, element, and Ten God is read in relation to the Day Master. Learn the full list in our 10 Day Masters guide.
What are the Ten Gods in BaZi?
Ten relational labels that describe how every other stem in your chart supports, drains, challenges, or controls your Day Master. They translate raw elemental energy into life themes: career, wealth, creativity, support, and peers. Ten Gods are what make BaZi specifically useful for modern career, money, and relationship reading.
Are Luck Pillars the same as the Chinese zodiac year?
No. Luck Pillars (大运) are personal — each is a 10-year chapter unique to your chart. The Chinese zodiac year is universal — everyone alive experiences the same annual energy. Your Annual Pillar reading is the interaction between your personal Luck Pillar, your natal chart, and the universal year.
How accurate is an online BaZi calculator compared with a professional reading?
The chart itself is identical — the math of stems, branches, solar terms, and Luck Pillars is deterministic. What differs is interpretation: a professional reading integrates nuance across the full chart and your current context. Use this calculator to get your structure right, then deepen the reading with our guides.
Does this BaZi calculator work for birth dates outside China?
Yes. BaZi is based on the astronomical solar calendar (Jie Qi), not a regional calendar. The calculator supports any birth date from 1900 to 2100, anywhere in the world. For the most accurate Hour Pillar, enter your true local solar time.
Should I use solar time or standard local time for my BaZi chart?
BaZi uses true solar time — the sun's actual position at your birth longitude. For most people, standard local time is close enough. If you were born under daylight saving or near a time-zone border, convert to true solar time first (roughly 4 minutes per degree of longitude from the zone's meridian) for the most accurate Hour Pillar.