Free BaZi Calculator

Your Four Pillars of Destiny Chart, Calculated Instantly

Enter your birth date and time. Get your Heavenly Stems, Earthly Branches, Day Master element, and 10-year luck cycles — free.

Calculate My BaZi Chart No account required  ·  AI-powered reading included

What Is a BaZi Calculator?

Also called a Four Pillars of Destiny calculator or Chinese astrology chart calculator — it converts your exact birth data into a structured eight-character chart used in Chinese metaphysics for over 1,400 years.

The chart is built from the Chinese lunisolar calendar. Your birth year, month, day, and hour each map to a pair of characters: a Heavenly Stem (天干) and an Earthly Branch (地支). Together, these four pairs — eight characters total — are your "BaZi" (八字, literally "eight characters").

The central figure in your chart is your Day Master — the Heavenly Stem of your Day Pillar. It represents you: your personality, your natural tendencies, and how you relate to the other energies in your chart. Everything in BaZi analysis flows from understanding your Day Master.


The Five Pillars of Your BaZi Chart

A complete BaZi reading includes four natal pillars from your birth data, plus your current Da Yun luck cycle.

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Pillar 1
Year Pillar

Your ancestral background, early environment, and outer social persona. Reflects the era and collective energy you were born into.

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Pillar 2
Month Pillar

Your career, parents, and the dominant season of your chart. The strongest influence on your Day Master's strength and elemental balance.

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Pillar 3
Day Pillar

You — your core personality and your primary relationships. The Day Stem is your Day Master, the single most important character in your chart.

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Pillar 4
Hour Pillar

Your children, inner thoughts, ambitions, and the later years of your life. Requires your birth time for accurate calculation.

Pillar 5
Da Yun — Luck Cycle

Your 10-year luck pillars show the elemental energies cycling through your life. Timing decisions to your active Da Yun is central to BaZi.

Sample BaZi Chart — How It Looks

Hour Day (You) Month Year
Ren Yang Water Jia — Day Master Yang Wood Bing Yang Fire Geng Yang Metal
Zi — Rat Water Wu — Horse Fire Yin — Tiger Wood Wu — Horse Fire

Day Master is Jia Wood (甲). The chart is heavy in Fire and Wood, with a Water resource in the Hour. MisterGuan's AI reads the elemental balance, Ten Gods relationships, and active Da Yun to generate personalized insights.


The 10 Day Masters — Which Element Are You?

Your Day Master is derived from your birth date. There are 10 possible Day Masters across the five elements, each with distinct personality traits.

Element Day Master Character Core Traits
WoodJia (Yang Wood)Driven, principled, ambitious — like a tall tree reaching upward
WoodYi (Yin Wood)Flexible, adaptable, charming — like a vine that finds its way
FireBing (Yang Fire)Warm, outgoing, inspiring — like the sun, lights up every room
FireDing (Yin Fire)Thoughtful, perceptive, loyal — steady and warm like candlelight
EarthWu (Yang Earth)Reliable, stable, protective — solid and dependable like a mountain
EarthJi (Yin Earth)Nurturing, detail-oriented, resourceful — like fertile soil
MetalGeng (Yang Metal)Decisive, direct, justice-oriented — sharp and clear like a sword
MetalXin (Yin Metal)Refined, perfectionist, aesthetic — precise and beautiful like a jewel
WaterRen (Yang Water)Resourceful, strategic, free-spirited — deep and vast like the ocean
WaterGui (Yin Water)Intuitive, empathetic, mysterious — gentle but persistent like rain

How MisterGuan Calculates Your BaZi Chart

MisterGuan's engine uses the corrected Zi Ping method — the same system used by professional practitioners.

1

Enter Your Birth Data

Provide your birth date, time (if known), and location. Location is used to calculate True Solar Time — a precision adjustment that can shift your Hour Pillar by up to 30 minutes depending on where you were born.

2

Solar Term Boundary Correction

Month pillars in BaZi change at solar terms (節氣), not the 1st of the calendar month. MisterGuan calculates exact solar term crossing times so your Month Pillar is accurate — something many calculators get wrong.

3

Four Pillars + Hidden Stems

Your Year, Month, Day, and Hour Pillars are derived with their Heavenly Stems and Earthly Branches. Hidden stems (Cang Gan) — the elements concealed inside each Branch — are also extracted for a complete reading.

4

Da Yun Luck Cycle Calculation

Your 10-year luck pillars are calculated from your birth date and gender using solar term distances. MisterGuan generates 9 Da Yun pillars covering decades of your life timing.

5

AI-Powered Reading

Once your chart is built, MisterGuan's AI reads the elemental balance, Ten Gods relationships, and active luck cycles to deliver insights on personality, career, relationships, and timing — in plain English.


Frequently Asked Questions

Common questions about BaZi calculators and how they work.

What is a BaZi calculator?

A BaZi calculator converts your birth date and time into a Chinese astrology chart. The chart shows four pillars — Year, Month, Day, and Hour — each composed of a Heavenly Stem and an Earthly Branch. These eight characters reveal your Day Master element, your personality traits, and your timing cycles over a lifetime.

What do I need to calculate my BaZi chart?

You need your birth date (year, month, day) and ideally your birth time. The birth time determines your Hour Pillar and affects your Da Yun start age. If you don't know your exact birth time, a three-pillar reading is still meaningful.

What is a Day Master in BaZi?

The Day Master is the Heavenly Stem of your Day Pillar — it represents you in your BaZi chart. There are 10 possible Day Masters (Jia Wood, Yi Wood, Bing Fire, Ding Fire, Wu Earth, Ji Earth, Geng Metal, Xin Metal, Ren Water, Gui Water). Your Day Master reveals your core personality, strengths, and how you interact with the world.

How is BaZi different from the Chinese zodiac?

The Chinese zodiac assigns one animal based solely on your birth year — shared by roughly 1 in 12 people on Earth. BaZi uses your year, month, day, and hour to produce 8 unique characters. Because it incorporates the day and hour, no two people alive today are likely to share the same complete BaZi chart.

How accurate is this BaZi calculator?

MisterGuan uses solar term boundary corrections, True Solar Time adjustments, and the corrected Zi Ping method — the same standards used by professional BaZi consultants. The chart calculation itself is mathematically precise. The AI reading interprets that chart based on classical BaZi principles.

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