Free BaZi Calculator

Discover your Day Master, elemental composition, and the ten-year cycles that shape your life — from the eight characters of your birth moment.

Birth details

Unknown time leaves the hour pillar unassigned. An exact time matters near a solar term, a day boundary, or a two-hour boundary.

Enter the clock time exactly as recorded. Historical daylight saving is handled automatically; do not subtract it yourself. For a Xinjiang record, distinguish Beijing time (Asia/Shanghai) from Xinjiang local time (Asia/Urumqi).

Only choose an occurrence if your birth record establishes which one it was. An uncertain record should stay uncertain.

Solar time uses longitude and the equation of time. It can change the date as well as the hour. Both day-boundary conventions are available; compare them if your corrected time is near midnight. Read the rules and limitations.

Free charts are calculated on the fly. We do not store your birth details — no account, no saved data.

Time used for day/hour:

Before interpreting this chart

How your birth record was used

Year and month change at the astronomical solar-term instant, converted to the birth record's time zone. See the full method and test cases.

What this chart establishes

Read the full chart in context — see what a deep reading includes →

Year
Month
Day (You)
Hour

Hidden Stems

Luck Cycles

Your Energy Balance

Dominant:
Lightest:

Where You Are Right Now

Next phase:

Every decade brings a different current. Not about prediction — about recognition. Knowing the season you are in changes what you see.

These are your patterns. Ready for the full picture? See what a complete reading includes.

You have the outline. See the full pattern in context.

A full Four Pillars reading connects your Day Master, Ten Gods, element balance, luck cycles, and timing in one practitioner-reviewed report.

Preview a Sample Four Pillars Reading Get the Full Four Pillars Reading — $24.99

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Enter your Gregorian birth date. The system calculates solar-term-based Four Pillars automatically.

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How This BaZi Calculator Builds Your Four Pillars

Enter your Gregorian birth date and time, and this calculator converts it into the four pillars of BaZi: year, month, day, and hour — each made of a Heavenly Stem and an Earthly Branch. From those eight characters it derives your Day Master, Ten Gods, elemental balance, and Luck Cycles using the solar-term calendar. The calculation is deterministic: the same birth details always produce the same chart.

New to BaZi? Read the plain-English guide →

Your Day Master

The Heavenly Stem of your day pillar is your Day Master — the element that represents your core self. Are you Jia Wood (a towering tree), Bing Fire (the sun), Geng Metal (a forged blade)? Your Day Master tells you your inherent strengths, how you process experience, and what environments let you thrive.

The Ten Gods

The relationship between your Day Master and the other seven characters reveals your Ten Gods — archetypes that describe your relationship with wealth, authority, expression, resources, and peers. A strong Output star suggests a natural communicator. A prominent Authority star indicates leadership capacity. These are not judgments — they are descriptions of your default wiring.

Luck Cycles: Your Personal Seasons

BaZi is unique in mapping ten-year Luck Cycles — macro-seasons of your life, each bringing a different elemental current. You might be in a Wealth cycle (abundance and resource focus) or an Authority cycle (career pressure and recognition). Understanding which cycle you are in changes how you interpret what happens to you.

Why Use This Tool?

This calculator gives you your Day Master, your elemental balance, your Ten Gods distribution, and your current Luck Cycle — free, instantly. It is a starting point. A full reading goes deeper into timing, relationships, career seasonality, and the interplay between all eight characters. Not prediction. Recognition.

Common Questions

What are the Four Pillars of Destiny?
The Four Pillars of Destiny (BaZi) is a classical system of destiny analysis rooted in the Five Elements and the cycles of time. Your birth year, month, day, and hour each contribute two characters — a Heavenly Stem and an Earthly Branch — forming eight characters that describe your core nature and life rhythm.

What is my Day Master?
The Heavenly Stem of your Day Pillar is your Day Master — the element that represents your core self: Jia Wood, Bing Fire, Geng Metal, and so on. It describes your inherent strengths, how you process experience, and what environments let you thrive.

What are the Ten Gods?
The Ten Gods are archetypes describing your relationship with wealth, authority, expression, resources, and peers — derived from how your Day Master relates to the other seven characters.

What are Luck Cycles?
BaZi maps ten-year Luck Cycles — macro-seasons of your life, each carrying a different elemental current. Understanding which cycle you are in changes how you interpret what happens to you.

Is BaZi fortune-telling?
No. The chart describes your wiring and the seasons you move through. Not prediction — recognition.

Further Reading on the Four Pillars

Ready for a complete Four Pillars Deep Reading? Explore our readings →

How this chart is calculated

Chart generation is deterministic — the same birth data always produces the same chart. The calculation publishes its solar-term boundaries, time-zone handling, day-boundary choice, and limitations. Unknown birth time is never silently replaced with noon.

Methodology →   Editorial policy →