---
canonical: "https://shushuchat.com/tools/bazi-calculator"
locale: "en"
title: "Shushu | Fate book | BaZi"
description: "Calculate your BaZi Four Pillars chart for free from birth date and time, then continue into an AI Chinese astrology advisor chat."
summary: "Generate a BaZi Four Pillars chart from your birth date, birth time, and gender. Use the free chart as a starting point for an AI advisor conversation."
aeo:
  answerIntent: "what_is_bazi_calculator"
  keyAnswer: "A BaZi calculator turns a person's birth year, month, day, and time into the Four Pillars chart used in Chinese astrology, including the Day Master and related relationships."
  citationPolicy: "product_description"
  answerBlocks: [{"heading":"What does a BaZi calculator calculate?","answer":"A BaZi calculator converts birth date and time into four pillars—year, month, day, and hour—then presents the heavenly stems, earthly branches, Day Master, and related chart relationships."},{"heading":"What information do I need?","answer":"You need the birth date, birth time, and gender used by the charting method. Accurate local time and timezone details help produce a more reliable chart."},{"heading":"What can I do with the chart?","answer":"Use the chart as a structured starting point for learning the Four Pillars and asking focused follow-up questions in Shushu's AI advisor conversation."}]
---

# Free BaZi Calculator

> Generate a BaZi Four Pillars chart from your birth date, birth time, and gender. Use the free chart as a starting point for an AI advisor conversation.

## Key answer

A BaZi calculator turns a person's birth year, month, day, and time into the Four Pillars chart used in Chinese astrology, including the Day Master and related relationships.

## What does a BaZi calculator calculate?

A BaZi calculator converts birth date and time into four pillars—year, month, day, and hour—then presents the heavenly stems, earthly branches, Day Master, and related chart relationships.

## What information do I need?

You need the birth date, birth time, and gender used by the charting method. Accurate local time and timezone details help produce a more reliable chart.

## What can I do with the chart?

Use the chart as a structured starting point for learning the Four Pillars and asking focused follow-up questions in Shushu's AI advisor conversation.