Read the pattern you have been living inside.

A Chinese birth chart, calculated rather than guessed

This is a free Chinese astrology calculator. Enter your birth date, time and city, and it computes your Chinese birth chart — the Four Pillars, or BaZi — then writes a reading of it.

Everything the chart is derived from is deterministic. The same birth details always produce the same four pillars: the calculation restores your time zone, applies the true solar time correction, and derives each pillar by fixed rules. Nothing in that chain involves a language model — you can see every step under How this was calculated on your chart.

What the calculator produces

• Your four pillars — year, month, day and hour
• The day master, the character the whole chart is read around
• How your eight characters distribute across the five elements
• A written reading, and a longer report you can unlock in place

Where to go next

• What is BaZi? — the system, and what it is not
• BaZi vs Western astrology — what each one actually reads
• How your chart is calculated — every step, including true solar time
• Where this system came from — the documented history