Your Four Pillars chart
Explore the Ten Gods, hidden stems and other traditional chart details.
Zi Ping astrology · Modern interpretation
Free BaZi Calculator
Four Pillars birth chart
Use this free BaZi calculator to create your Four Pillars birth chart and explore your strengths and patterns through traditional Chinese astrology.
Spring
Summer Commences
Summer Solstice
Summer
Autumn Commences
Autumnal Equinox
Autumn
Winter Commences
Winter Solstice
Winter
Spring Commences
Vernal Equinox
24 Solar TermsA rhythm for every seasonTime moves · Life unfolds
Year Pillar甲辰WoodEarth
Month Pillar丙寅FireWood
Day Pillar戊午EarthFire
Hour Pillar壬子WaterWater
Follow the seasons · Understand yourself · Look ahead
Luck cycles and annual trends
See the timing of different life stages as a tool for reflection.
AI Bazi interpretation
Read a structured interpretation of the chart in modern language.
A more thoughtful view
Bring another perspective to important decisions.
What this calculator offers
What your BaZi chart can show
A chart is a traditional framework for reflection, not a fixed verdict. Start with its four pillars, then read each element in relation to the whole.
The Four Pillars
Year, month, day and hour pillars each pair a Heavenly Stem with an Earthly Branch. Together they form the basic structure of a BaZi chart. The birth-time input is converted to Beijing time for this calculation.
Day Master and Day Pillar
The Heavenly Stem of the day pillar is called the Day Master. It is a reference point used in traditional readings to describe how the other chart elements relate to the person. It is not a complete personality label on its own.
Five Elements and balance
Wood, Fire, Earth, Metal and Water describe relationships within the chart. Their counts are only a starting point; seasonal strength, position and interactions matter too. A simple element count should not be treated as a prescription.
Luck cycles and annual timing
Luck cycles and annual pillars are traditional ways to discuss changing time periods. They can offer prompts for reflection, but they do not establish that a particular event will happen or replace practical judgment.
BaZi calculator: common questions
What is a BaZi calculator?
It converts a birth date and time into the Four Pillars used in BaZi, a traditional Chinese system also called Four Pillars of Destiny.
Is BaZi the same as Paht Chee, Four Pillars of Destiny, or Saju?
BaZi and Paht Chee are names for the same Four Pillars tradition. Four Pillars of Destiny is its common English name. Saju is the Korean tradition that shares historical roots and related concepts, with its own cultural practice.
What information do I need?
Enter the birth year, month, day, hour, minute, gender and the UTC offset that applied at the birthplace on that date. Longitude is optional.
Does the calculator automatically handle daylight saving time?
No. Select the historical UTC offset for the birthplace and birth date yourself. Daylight-saving rules have changed over time and are not detected automatically.
What does the longitude option do?
When supplied, longitude applies a time adjustment of four minutes per degree relative to 120°E. This is a longitude-based true-solar-time correction; it does not calculate the equation of time.
How reliable is an AI BaZi interpretation?
The chart calculation and its interpretation are different things. AI can help explain traditional terms, but its reading is not a verified prediction and may omit context. Use it as cultural reference, not as professional advice.
How is this different from asking ChatGPT?
This tool first calculates a structured Four Pillars chart using a dedicated calendar process, then offers topic-based interpretation. A general chatbot may not reliably calculate calendar boundaries or time-zone details.
What if I do not know my birth time?
Use the closest documented time only if you have a reasonable source. Without a reliable hour, the hour pillar may be wrong; avoid treating a guessed time as a precise chart.
Zi Ping · Traditional wisdom for modern life