Free chart
BaZi Four Pillars & Wu Xing Calculator
Calculate your BaZi (八字) birth chart online from your birth date and time. Map your Four Pillars — Year, Month, Day, and Hour — and see how Wood, Fire, Earth, Metal, and Water show up across your chart, including your Day Master and elemental balance.
Enter the local time where you were born. If you do not know your birth time, select "Unknown" and we will use noon as a neutral default.
Frequently Asked Questions
- What is a BaZi calculator?
- A BaZi calculator converts your birth date and time into a Four Pillars (八字) chart. It reveals your Heavenly Stems, Earthly Branches, Day Master element, and Five Elements balance — the foundation of traditional Chinese naming.
- Do I need my exact birth time to calculate BaZi?
- Exact birth time gives the most accurate result, especially for your Hour Pillar. If you do not know your birth time, most calculators use noon as a neutral default. You still get 75% of the chart's information from the Year, Month, and Day Pillars.
- What is a Day Master in BaZi?
- Your Day Master is the Heavenly Stem on top of your Day Pillar. It represents your core self-element — one of Wood, Fire, Earth, Metal, or Water. Understanding your Day Master is the first step in analyzing your chart and choosing a balanced Chinese name.
- How does BaZi connect to Chinese naming?
- Your BaZi chart reveals which of the Five Elements are strong, weak, or missing. In Chinese naming tradition, characters are selected to reinforce deficient elements and moderate excessive ones — creating harmony between your birth energy and your name.