Tools

Free Bazi Calculator

Generate a deterministic Four Pillars chart from a birth date and local civil time. This Ming Li tool returns the Day Master, Ten Gods, hidden stems, lunar date, and Five Element balance without storing birth data.

Birth Details

Civil date and local birth time.

Precision settings
Time basis

Civil time is the default. True solar time uses longitude and the time-zone offset to correct the entered clock time.

Direct Answer

The free Bazi calculator creates a Four Pillars reference chart from the birth date and local civil birth time you enter. It separates deterministic chart calculation from interpretation, so the pillars stay stable while reading guidance remains educational.

What this calculator returns

Four Gan-Zhi pillars for year, month, day, and hour from the local civil date-time you enter.

Day Master, stem and branch metadata, hidden stems, and Ten Gods relative to the Day Master.

Weighted Five Element balance from visible stems and branch hidden-stem structure.

Reading cues that stay deterministic and separate calculation from AI interpretation.

Sample Chart

Bing Fire Day Master

This example uses the default birth details above. Enter your own date and time, then calculate to generate your chart.

Day Master丙
1990-01-01 12:00
Lunar 1989, 腊月 初五
Local civil time
Civil timeCalculated as 1990-01-01 12:00
No birthplace note supplied
Privacy

This calculator runs in the browser and does not save your birth details to a server.

Use the birth time already adjusted to the birthplace's local civil time before reading the pillars.

Example reading path

Your chart starts with the Bing Fire Day Master

Read the day stem first, then use Ten Gods, Five Elements, and Luck Pillars to add context in that order.

Recommended first · Step 1Read your Bing Fire Day Master guideStart with the dedicated guide for the Bing Fire day stem in this chart.Open your Day Master guide
  1. 2Ten GodsDecode the relationship roles around the Day Master.
  2. 3Five ElementsRead the element balance in depth.
  3. 4Luck PillarsSee how timing cycles layer over the natal chart.

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Year Pillar

己巳

Snake

Ancestry, public context, and early environment

Stem
Ji / Yin Earth
Ten God
Hurting Officer (伤官)
Branch
Si / Fire
丙 比肩戊 食神庚 偏财

Month Pillar

丙子

Rat

Season, work style, family system, and social role

Stem
Bing / Yang Fire
Ten God
Friend (比肩)
Branch
Zi / Water
癸 正官

Day Pillar

丙寅

Tiger

Day Master, intimate self, and close relationships

Stem
Bing / Yang Fire
Ten God
Day Master (日主)
Branch
Yin / Wood
甲 偏印丙 比肩戊 食神

Hour Pillar

甲午

Horse

Late-life themes, ambitions, ideas, and output

Stem
Jia / Yang Wood
Ten God
Indirect Resource (偏印)
Branch
Wu / Fire
丁 劫财己 伤官

10-year Luck Pillars

Traditional Da Yun cycles are shown as a timing reference after the natal chart. Direction and start age depend on the selected gender rule; they are not predictions.

Select male or female in the optional chart labels to calculate the traditional Da Yun direction. The natal chart itself does not require this field.

Five Element Balance

Weighted from visible heavenly stems and branch hidden stems. This is a practical signal, not a full strength judgment.

木Wood
20%
火Fire
45%
土Earth
21%
金Metal
1%
水Water
13%

Reading Cues

  • Your Day Master is Bing 丙, Yang Fire. In Bazi, this is the reference point for identity, decision style, and self-expression.
  • Fire is the strongest weighted signal in this chart. Read it as an emphasis on visibility, warmth, expression, and momentum.
  • The Month Pillar is 丙子, placing Water seasonality near the center of the chart's practical reading.
  • The lightest element signals are Metal and Water. In a full reading, these areas deserve context before being labeled as weak or missing.

Calculation Notes

  • This chart uses deterministic Gan-Zhi and lunar calendar conversion for the entered birth time.
  • Civil time is used as entered. For births close to a time or solar-term boundary, compare both methods.
  • The time-zone field identifies the civil clock used. It does not geocode the birthplace or infer longitude.
  • AI interpretation is intentionally separate from the deterministic chart so generated guidance cannot change the calculated pillars.

For entertainment and self-reflection purposes.

What the chart calculates

The calculator maps a birth date and local civil time into the Chinese stem-branch calendar. It returns the year, month, day, and hour pillars, then marks the Day Master from the day stem so the rest of the chart can be read in relation to that anchor.

How to read it first

Start with the Day Master, then check the month branch for season, visible stems for expression, hidden stems for stored energy, and Ten Gods for relationship roles. Element balance is a helpful overview, but it should be read after season and Day Master context.

What it should not do

A Bazi chart is not a medical, legal, financial, or mental health diagnosis. Use the result as a structured learning reference. For real-world decisions, combine chart reflection with practical judgment and qualified professional advice where needed.

Calculation method and limits

The calculator converts the entered civil date and time into year, month, day, and hour stem-branch pillars, then derives the Day Master, hidden stems, Ten Gods, lunar date, and an element-count overview. Repeating the same inputs produces the same chart.

Civil time is used exactly as entered. The optional true solar mode applies an estimated longitude correction and shows the effective time in the result. The correction does not geocode a birthplace, and births close to midnight, a two-hour branch boundary, daylight-saving changes, or a solar-term boundary deserve an independent check.

Element percentages are not a complete strength judgment. Read them after the birth season, month branch, root support, combinations, and the placement of each symbol. The calculator constructs the chart; the linked guides explain how to interpret it without reducing the result to a single score.

Method references: the calendar conversion uses the open-source lunar-typescript library. Lunar New Year boundary checks can also be compared with the Hong Kong Observatory conversion tables. These references document calendar mechanics; interpretive guidance remains educational.

Recommended Bazi reading order

  1. 1. Day Master: find the self-reference point in the day stem.
  2. 2. Month branch: check season and element strength before judging balance.
  3. 3. Stems and branches: compare visible expression with hidden stored energy.
  4. 4. Ten Gods: translate elements into resource, peer, output, wealth, and authority roles.
  5. 5. Luck Pillars: add 10-year timing only after the natal chart is clear.
  6. 6. Practical reflection: connect chart themes to lived choices without treating them as fixed outcomes.

Frequently Asked Questions

Common questions

What does the free Bazi calculator show?
It shows the year, month, day, and hour pillars, the Day Master, Ten Gods, hidden stems, lunar date, Five Element balance, deterministic reading cues, and traditional 10-year Luck Pillars when a gender direction rule is selected.
Should I enter local time or convert to another time zone?
Enter the birth time as the local civil clock time at the birthplace. Civil time is the default. For an optional true solar time calculation, enter an IANA time zone and the birthplace longitude; the result shows the correction applied.
Does the calculator save my birth details?
No. The chart is calculated in the browser session and the page does not save birth details to a user profile.
Is the result a fixed prediction?
No. The chart is a structured reference for self-reflection and learning. It should not replace practical judgment or professional advice.
How accurate is the Bazi calculator?
The same entered details always produce the same deterministic chart. Civil time is read exactly as entered. True solar time is an optional estimated correction using longitude, the entered time zone, and the equation of time. Births close to midnight, a two-hour branch boundary, daylight-saving change, or solar-term boundary should be independently checked.
Does Five Element balance show whether a chart is strong or weak?
Not by itself. Element counts are an overview. Day Master strength also depends on season, the month branch, root support, combinations, and the position of each stem and branch.

Further Reading

Related guides

Bazi Overview

Follow the complete reading order after generating the chart.

Read guide

What Is Bazi?

Understand the Four Pillars before reading a chart.

Read guide

The Five Elements

Learn Wood, Fire, Earth, Metal, and Water in Bazi.

Read guide

Ten Gods

Decode the relationship roles around the Day Master.

Read guide

Heavenly Stems

Read the visible stem layer shown in each pillar.

Read guide

Earthly Branches

Understand branches, hidden stems, and seasonal context.

Read guide

Luck Pillars

Add the 10-year timing layer after the natal chart.

Read guide