Look for calculators that offer "True Solar Time" and "Solar Term accuracy." Avoid those that simply map Western zodiac signs to Chinese animals (that is just horoscopes, not Ba Zi).
When you run your chart, look for your "Day Master" element first. Are you Metal, Wood, Water, Fire, or Earth? That is the gateway to your destiny.
This is the most critical output. The Heavenly Stem of your Day Pillar is called your Day Master. For example, if your Day Master is Yang Wood (Jia), you are like a tall, unbending tree—ambitious and principled.
| Solar Term (approx date) | Earthly Branch | Heavenly Stem formula |
|--------------------------|----------------|-----------------------|
| Feb 4 – Mar 5 | Tiger (寅) | Derived from Year Stem |
| Mar 6 – Apr 4 | Rabbit (卯) | via "Five Elements Prosperity" table |
Formula for Month Stem:
(Year Stem number × 2 + Month index) mod 10 (Month index: 1 for Tiger, 2 Rabbit, etc.)
Let’s say a calculator returns a Day Master of "Yang Wood" (Jia 甲).
The calculator will tell you your "Useful God" (Yong Shen)—the element you need to borrow from the universe to balance your chart.
Most free calculators online require the following inputs:
Click "Calculate" – The output will display a grid of 8 Chinese characters, often color-coded by element (Green=Wood, Red=Fire, Yellow=Earth, White=Metal, Blue/Black=Water).
Four Pillars Chinese Astrology Calculator May 2026
Look for calculators that offer "True Solar Time" and "Solar Term accuracy." Avoid those that simply map Western zodiac signs to Chinese animals (that is just horoscopes, not Ba Zi).
When you run your chart, look for your "Day Master" element first. Are you Metal, Wood, Water, Fire, or Earth? That is the gateway to your destiny.
This is the most critical output. The Heavenly Stem of your Day Pillar is called your Day Master. For example, if your Day Master is Yang Wood (Jia), you are like a tall, unbending tree—ambitious and principled. four pillars chinese astrology calculator
| Solar Term (approx date) | Earthly Branch | Heavenly Stem formula |
|--------------------------|----------------|-----------------------|
| Feb 4 – Mar 5 | Tiger (寅) | Derived from Year Stem |
| Mar 6 – Apr 4 | Rabbit (卯) | via "Five Elements Prosperity" table |
Formula for Month Stem:
(Year Stem number × 2 + Month index) mod 10 (Month index: 1 for Tiger, 2 Rabbit, etc.) Look for calculators that offer "True Solar Time"
Let’s say a calculator returns a Day Master of "Yang Wood" (Jia 甲).
The calculator will tell you your "Useful God" (Yong Shen)—the element you need to borrow from the universe to balance your chart. This is the most critical output
Most free calculators online require the following inputs:
Click "Calculate" – The output will display a grid of 8 Chinese characters, often color-coded by element (Green=Wood, Red=Fire, Yellow=Earth, White=Metal, Blue/Black=Water).