Free AI BaZi Calculator
The chart shown is an example. Enter your birth date and time below, or open More options for a lunar date, city and longitude correction.
Calculate my chartFree calculation. No signup required.
what the free AI BaZi calculator returns
What the Free AI BaZi Calculator Gives You
Start with the calculated structure; read the interpretation as a separate layer.
Four Pillars Chart
Year, month, day and hour pillars with hidden stems and Ten Gods. Solar and lunar dates both accepted, 1900–2100.
Day Pillar & Day Master
The stem of your Day Pillar is you. Whether it runs strong or weak decides every reading that follows.
Five Elements & Favourable Stem
Element counts weighted by season and position — not a simple tally — then your favourable and unfavourable elements.
Da Yun Luck Cycles
Your start age, all eight ten-year luck cycles, where you stand now and which year the next one begins.
why trust it
Three facts,
not three adjectives.
Calendar calculation comes first
The year, month, day and hour pillars are calculated from birth details using calendar rules. AI produces explanations of this structured result; it does not determine the calendar pillars. Interpretations are for learning and reflection, not verified predictions.
Choose the right input path
The quick form takes a solar birth date and clock time. It does not collect a city or apply a city-based correction. More options opens the full flow for lunar dates, birth location and longitude-based local mean time; check these details near an hour boundary.
Check assumptions at boundaries
Solar terms set month boundaries. If the birth time is unknown or close to a boundary, compare plausible inputs before relying on an hour-dependent interpretation. Schools differ on some conventions, so a calculated result is not a guarantee about future events.
AI BaZi Calculator FAQ
Does this AI BaZi calculator cost anything? Do I need an account?
The basic calculator is free and does not require signup. Saving records, AI services and membership features have their own access and usage limits; see the relevant feature or plans page for details.
What if I do not know my birth hours?
Select “I don’t know the time”. The quick calculator uses a noon placeholder and marks the time unknown. Do not treat the displayed hour pillar or time-dependent interpretations as confirmed.
How is this different from a star sign?
A Sun sign uses one part of a Western astrology chart. Four Pillars uses stem–branch pairs for birth year, month, day and hour. These are different traditions of interpretation, not scientifically verified predictions.
What should I check for a birth outside East Asia?
Use More options to enter the birth location and check the time details. The quick form alone does not collect longitude. Calendar conventions and interpretation schools can differ; avoid treating an uncertain birth time as exact.
What is a Day Master and why does it matter?
The Day Master is the Heavenly Stem of your Day Pillar — the character that stands for you. Its strength decides which elements are favourable, which in turn drives the Da Yun and luck year readings.
Is BaZi the same as Paht Chee, the Four Pillars of Destiny, or Saju?
Same system, different names. 八字 is read Paht Chee in Singapore and Malaysia, translated as the Four Pillars of Destiny in English, called Saju in Korea and Shichusuimei in Japan. All of them mean the same four pillars — year, month, day and hour. Whichever name you searched for, this calculator builds the same chart.
the four pillars of destiny
Year, Month, Day Pillar and Hours
Eight characters. That is the whole base map.
Yang Wood
The towering tree
Year pillar · family background and the colour you start with
OpenMonthYang Metal
Sword and raw ore
Month pillar · temperament and the spine of your working life
OpenDay (Self)Yin Fire
Candle and starlight
Day pillar · you yourself, and your partner
OpenHourYin Metal
Jewel and fine metal
Hour pillar · later years and children
Openten years at a time
Da Yun: Start Age and Luck Years
A chart is fixed. Da Yun is what moves.
Your Da Yun does not begin at birth. It starts at an age set by the gap between your birth and the nearest solar term, then advances one pillar every ten years; direction depends on your year stem and gender. The AI BaZi calculator returns the start age, all eight cycles and the current luck year.
- Start age
- Counted from the solar term, to the month. Not rounded to a whole year.
- Eight cycles
- Each ten-year pillar with its own stem, branch and direction of travel.
- Luck year
- The annual pillar laid over the cycle, so you see both at once.
how the calendar works
Solar terms and month boundaries
A calendar illustration, not a live countdown
The twelve principal month-opening solar terms define the month boundaries used in Four Pillars calculation. Near a boundary, the date alone may not be enough: the birth time and applicable time convention matter.
Learn about the calendar
Learn the Four Pillars basics
What is BaZi (the Four Pillars)?
The Ten Heavenly Stems
The twelve double-hours
Sixty Jia-Zi day pillars
Key terms: Day Master, Da Yun, luck year, favourable element, Ten Gods
four reading systems
More than BaZi: Ziwei, Astro & Fusion charts
Use the same birth data, switch the reading system, and see how each tradition interprets it.
Zi Wei Dou Shu
Stars in twelve palaces: structure, transformations, and decade cycles.
Western Astrology
Planets, signs, and houses interpreted from the natal chart.
Fusion Reading
Overlay BaZi, Ziwei, and Astro to see where the three traditions agree or diverge.
every day, one line —
Know your chart.
Then know your day.
The chart does not move. The days do. Subscribe and every morning you get one line: which way today leans, which hours are worth acting in, and what to leave alone. Thirty seconds, not a report.
- Today
- Daily reading, hexagram and check-in
- Cast
- One question, one hexagram. 3 a day.
- Astronomer
- Ask it anything — it has read every record of yours
- Seals
- A streak becomes a seal book you can read backwards
Free to try: 1 cast a day, the Court Astronomer 1 time a week
Daily view · illustration
This card shows the layout of the daily view.
The scores, hours and symbols below are sample values, not guidance for you or for today.
more from the same chart
More AI BaZi Tools
Compatibility Chart · two people
Partners, family, teammates. Two charts side by side: who fills whom, who drains whom, and the one thing you will keep arguing about. One-time unlock, not part of the plan.
Open
Da Yun Calculator
Start age and the curve across all eight ten-year luck cycles — which decade runs uphill and which runs down.
OpenThe best day to start, move, or marry
BaZi date selection: pick what you are planning, and compare which day — and which hour — runs smoother for your chart.
Open
Life Song
Your chart written as a song you can play and share as a vertical video.
Open
This Month
The whole month on one screen.
Open
Patterns & Gifts
What repeats in your chart, in plain words.
Open
Zodiac Pairs
78 pairings, quick lookup.
Open
TarotSoon
The same question in a different deck.
—Birth Longitude
Clock time isn’t sun time. Correct it and see if your hour pillar changes.
OpenWhat people say
Cleanest calculator I have used. It just runs — it did not ask me to register first.
It does not frighten you. Other sites reach for "great misfortune"; here the worst it says is "do not force it today".
The English does not do that fake-oriental voice. It reads like a normal person wrote it.
$19.9/ mo
34 days in a row · the gaps are the days you missed
two memberships —
Why just two?
Two is enough. Rhythm covers the everyday — Today, weekly and monthly reports, the Court Astronomer, the daily Cast — $69 a year. Clarity covers the deep readings — 300 credits a day, topped up when you run out, never expiring; days without a credit grant automatically become 300 Drops (each valid for 30 days), which open Luck Cycles, Annual Forecasts and LifeSong. The calculator itself stays free, no limits.
Clarity
$19.90/mo
- 300 credits a day, topped up when you run out — they never expire
- Days without a credit grant automatically become 300 Drops (each valid for 30 days)
- Drops open the deep readings: Luck Cycles, Annual Forecasts, LifeSong
- All Rhythm perks — Today, weekly/monthly reports, Court Astronomer, daily Cast
- Complete Bazi, Zi Wei & astrology readings + Combined Chart
Clarity Annual
$199.00/yr
- 300 credits a day, topped up when you run out — they never expire
- Days without a credit grant automatically become 300 Drops (each valid for 30 days)
- Drops open the deep readings: Luck Cycles, Annual Forecasts, LifeSong
- All Rhythm perks — Today, weekly/monthly reports, Court Astronomer, daily Cast
- Complete Bazi, Zi Wei & astrology readings + Combined Chart
- Save $40 vs monthly
The gifted natal reading unlocks chapter by chapter once billing starts — the full set within a month. It is a limited-time gift: we may change or end it, and anyone who subscribed before that is unaffected. Luck cycles and annual guidance are not included.
See both memberships