Chinese astrology chart
BaZi Four Pillars calculator
BaZi, or Four Pillars of Destiny, organizes a birth moment into year, month, day and hour pillars, each represented by a Heavenly Stem and Earthly Branch.
Calculate a BaZi Four Pillars preview
Calculate the year, month, day and hour pillars from local civil birth time.
Calculator input: Birth date and local civil time are required. True-solar-time correction is not applied in this preview.
Result preview: The result shows the Four Pillars, Day Master and five-element distribution screen.
This interactive calculator runs in the browser after the page loads. Inputs are calculated for the request and are not saved by the public preview.
Four time pillars
The year, month, day and hour pillars each contain a stem and branch. Together they form eight characters, which is the literal meaning of BaZi.
Calendar and timezone assumptions
Accurate pillar calculation requires clear rules for solar terms, local time, timezone and the day boundary used by the method.
Five-element balance
Traditional analysis considers relationships among Wood, Fire, Earth, Metal and Water, along with yin-yang polarity and seasonal context.
Frequently asked questions
What does BaZi mean?
BaZi means eight characters: the stem and branch for each of four birth-time pillars.
Is BaZi the same as the Chinese zodiac animal?
The zodiac animal describes only the year branch. BaZi calculates four complete pillars.
Why is birth time important in BaZi?
Birth time determines the hour pillar and can affect the complete element pattern.