BaZi Calculator · Four Pillars of Destiny

Free online BaZi chart — stems & branches, Ten Gods, hidden stems, NaYin, symbolic stars, luck pillars, element strength and structure

2010年03月05日 04:00雨水(2010.02.19)后14天4小时 · 距惊蛰1天Commanding Qi: 甲木(本气 · day 16/16)Luck starts: 0y 3m 10d(handover on 2010-06-15)
Structure: also(月支寅为日主甲之禄, 月令建禄)
Year
Month
Day
Hour
→ 2010-03-05 04:00
Four Pillars Chart
运限选中的运、年、月、日会并入上方命盘同参
庚辰 Luck 2020–2029

Luck Pillars

Ten years to a pillar · the axis of a life

庚甲冲 (Clash · Day stem)

庚辰 Luck · Annual Pillars

One pillar a year · the season in command

命书铺陈中……

What is BaZi (the Four Pillars)?

BaZi, the Four Pillars of Destiny, is the core method of classical Chinese astrology. A person's birth year, month, day and hour each form a "pillar" of one Heavenly Stem and one Earthly Branch — eight characters in total. The Day Stem is the Day Master, representing the person; the other seven characters interact with it through the five-element cycle to form a complete natal chart.

A professional Four Pillars chart shows not only the eight characters but also the Ten Gods, hidden stems, NaYin elements, voids, the twelve life stages, symbolic stars, luck pillars, element strength, the Life/Body Palaces and Fetal Origin, plus structure and climatic favourable elements. This tool computes all of them at once, supports solar, lunar and eight-character input with true-solar-time correction, and is free with no sign-up.

How to chart BaZi: four steps to your natal chart

Charting is deterministic calendar computation — these four steps let you read any BaZi chart.

  1. 1

    ① Fix the birth time

    BaZi rests on an exact hour. For cross-region or boundary Zi-hour (23:00/01:00) births, correct longitude with true solar time first.

  2. 2

    ② Lay out the four pillars

    Set the month pillar by the 24 solar terms and the hour stem from the day stem to get all eight characters.

  3. 3

    ③ Annotate the elements

    List the Ten Gods, hidden stems, NaYin, voids, life stages and stars for each pillar, and tally element strength.

  4. 4

    ④ Luck pillars & favourable element

    Arrange luck pillars by yin/yang direction, compute the start age, then judge the favourable element from structure and climate.

Every step above is automated here — enter your birth details and tap "Chart" to get the full result at once: pillars, Ten Gods, hidden stems, NaYin, stars, luck pillars, element strength and structure.

What a BaZi chart shows: the ten core elements

Understand these ten elements and the whole Four Pillars chart opens up.

Stems, Branches & the Four Pillars
Ten Heavenly Stems and twelve Earthly Branches pair into the sixty Jia-Zi. Year, month, day and hour each take one pair — the four pillars, the skeleton of the chart.
Day Master & the Ten Gods
The Day Stem is the Day Master. Measured against it, the other characters yield the Ten Gods (Friend, Rob Wealth, Eating God, Hurting Officer, Wealth, Officer, Killings, Resource…), which drive structure and analysis.
Hidden Stems
Each branch hides 1–3 stems (primary, middle, residual). The commanding stem of the month branch is decisive for structure and the favourable element.
NaYin Elements
Each pair of the sixty Jia-Zi carries a NaYin element (e.g. Gold in the Sea), thirty in all, used in compatibility, date selection and analysis.
Symbolic Stars (ShenSha)
Auspicious stars (Nobleman, Academic, Travelling Horse, Peach Blossom…) and inauspicious ones add nuance and warnings alongside structure — treated as secondary in the classics.
Luck Pillars & Annual Luck
Luck pillars run from the month pillar, ten years each; the annual pillar interacts with the chart to shape each period. The tool links annual, monthly and daily luck.
Element Strength & Favourable Element
Judge the Day Master's strength from the season, roots and stems, then choose the favourable and unfavourable elements by strength, climate and mediation.
Chart Structure
The month branch defines normal and special structures (Officer, Killings, Wealth, Eating, Hurting, Resource, Lu, Yang Blade, Follow, Transformation…), whose success sets the chart's level.
Void & Life Stages
Voids (two stem-less branches from the day pillar's cycle) weaken forces that land on them; the twelve life stages (Birth, Bath … Peak … Tomb, Death) gauge a stem's state within a branch.
Life / Body Palace & Fetal Origin
The Life Palace (month + hour), Body Palace (day + hour) and Fetal Origin form the "seven pillars" with the four pillars — auxiliary coordinates for advanced reading.
True Solar Time
China uses one standard time (120°E) yet local solar time can differ by over an hour. Boundary Zi-hour births especially need true-solar-time correction.
Classical Sources
Structure follows Zi Ping Zhen Quan and climatic use follows Qiong Tong Bao Jian, with reference to Di Tian Sui, San Ming Tong Hui and Yuan Hai Zi Ping.
FAQ

Four Pillars (BaZi) Chart — FAQ

延伸阅读

名人命例与流年通览,都可一键回到排盘工具对照。

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