Ready to calculate
Free Bazi Calculator Online
Bazi, also known as the Four Pillars, is one of the key systems of Chinese metaphysics. It uses the year, month, day and hour of birth to build a structured Bazi Chart through Heavenly Stems and Earthly Branches.
The result is not just a table of Chinese characters. It is a technical chart used by practitioners to study the Day Master, element relationships, personal patterns, timing cycles, relationship and career themes, wealth dynamics, Luck Pillars and important life phases.
This online Bazi calculator helps you build the chart quickly and receive the calculation data needed for further analysis.
You can calculate a Bazi Chart for free without registration. The public calculator shows the Four Pillars, elements, Ten Gods, Hidden Stems, Qi Phases, Luck Pillars, Gua, Personal Directions and key symbolic stars.
With a free account, you can save your own chart and the birth data of other people in the archive — up to 5 people. You can reuse saved data in new calculations without entering the birth date, time and place again.
The account version also includes extended sections for deeper work with the chart: 12 Palaces, Family Tree and Personal Direction explanations.
Chart calculation
Calculating a Bazi Chart is simple
Enter the birth date, birth time, birthplace and gender. The calculator will build the Bazi Chart and show the main calculation data.
If the birth time is unknown, you can calculate the chart without the Hour Pillar.
- 01Date of birth
- 02Birth time
- 03Birthplace
- 04Gender
Included for free
What you get in the free Bazi calculator
- Four Pillars: Hour, Day, Month and Year
- Heavenly Stems, Earthly Branches and Hidden Stems
- Ten Gods and 12 Qi Phases for each pillar
- Current Luck Pillar, current year and current month
- 10-Year Luck Pillars and yearly influences
- Five Elements circle and Lu Ming by Ten Gods
- Gua, Gua Group and Personal Directions
- Key stars: Nobleman Star, Taiji Nobleman, Peach Blossom, Traveling Horse, Academic Star and others
- Death & Emptiness branches by Day and Year
- Xuan Kong Da Gua data: star, period and hexagrams for the main pillars in display settings
- 12 Palaces in your account
- Family Tree in your account
Without registration, you can quickly build a chart and view the main data. After free registration, the calculator becomes more useful for regular work: you get a chart archive, saved data autofill and extended account sections.
This lets you return to existing charts, compare data for different people and use Bazi as a working tool rather than a one-time calculation.
Time accuracy
Why birthplace and exact birth time matter
In Bazi, the calculation does not follow the civil calendar month that begins on the first day of the month. Chinese solar months begin according to the 24 Solar Terms, so month boundaries may differ from the ordinary civil calendar.
In the precise mode, the calculator uses the date, time, birthplace and time zone to adjust the calculation to the Solar Time of the specific location. The Year, Month, Day and Hour Pillars are then determined relative to that time, and the boundaries of the Chinese two-hour periods are shown in the result.
If you need to check the chart using Beijing standard time, you can choose the two-hour-period mode. This is useful when the chart needs to be calculated according to that tradition rather than by the Solar Time of the birthplace.
Calculation basis
How the calculation is built
The user range of the Bazi calculator is 1600–2150. The calculation takes solar month boundaries and transitions between Chinese two-hour periods into account.
First, the Year, Month, Day and Hour Pillars are built. Then the calculator calculates Luck Pillars, current periods, Gua, Personal Directions, Lu Ming, symbolic stars and additional technical sections.
Reading the chart
Bazi calculator with interpretation
If you are looking for a Bazi calculator with interpretation, start by building the chart correctly. The free calculation already gives a strong technical base for initial analysis and self-study.
The important point is this: the calculator builds the chart and provides the calculation basis. Interpretation is a separate layer of analysis. The same elements can work differently in different charts, so a Bazi Chart should be read as a whole, not by one isolated sign.
FAQ
Frequently asked questions about the Bazi calculator
How do I calculate a Bazi Chart online?
Enter your birth date, birth time, birthplace and gender. The calculator builds your Bazi Chart and shows the Four Pillars, Hidden Stems, Ten Gods, Qi Phases, Luck Pillars, the current year and month, Gua and the main calculation sections.
Can I use the Bazi calculator for free?
Yes. You can calculate a Bazi Chart for free without registration. With a free account, you get an archive for up to 5 people, saved data autofill for new calculations and extended chart sections, including 12 Palaces, Family Tree and Personal Direction explanations.
Can the calculator give a full automatic Bazi reading?
No. The calculator builds the Bazi Chart and provides the calculation basis for analysis. Some additional descriptions are available in the account, but a full Bazi reading requires professional interpretation, context and reading the chart as a complete system.