Are the chart calculators free?
Bazi and Ziwei charts are free to generate and view.
Why combine Bazi and Ziwei?
Bazi is strongest at interpreting underlying structure through the Five Elements, Ten Gods, and chart patterns. Ziwei excels at reading palace themes and star combinations at a finer level of detail. Combining the two reduces misreadings and improves the stability of conclusions.
What to do next
- Click one of the Bazi or Ziwei buttons above.
- Enter your birth details to generate and view your chart.
- If you want a reading, click Start AI Reading to enter ChiBuddy.
Frequently Asked Questions
What information do I need to generate a chart?
Enter your birth date, time, location, and gender. The Bazi calculator applies true solar time when the birthplace and historical time rules can be confirmed. Otherwise, it keeps the entered local time and states that no correction was applied.
Which chart types does ChiBuddy support?
ChiBuddy supports Bazi (Four Pillars of Destiny) and Ziwei (Purple Star Astrology) charts. Enter your birth details to generate and view a chart.
Do I need to register to generate a chart?
No — the chart calculators are public. You only need to sign in when you want in-depth AI interpretation or an ongoing conversation with your astrology assistant.
Why combine Bazi and Ziwei (Purple Star Astrology)?
Bazi focuses on chart structure and Five Elements balance — it is better for understanding life direction and underlying patterns. Ziwei focuses on palaces and star combinations — it is better for specific themes and details. Looking at both systems together improves cross-verification and the reliability of the overall reading.
Want to understand the published calculation rules and validation scope?
Read the Bazi calculation methodology, the public Bazi validation cases, and the Ziwei calculation methodology for the user-visible role of birth details, traditional time periods, and birthplace time context.