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Build the Four Pillars
Birth year, month, day, and hour are converted into Heavenly Stems and Earthly Branches.
Enter your birth details to see your Da Yun sequence, start age, current 10-year luck cycle, and the element pattern shaping this decade. The calculation is free; deeper interpretation can be unlocked later.
The 10-Year Luck Calculator gives you powerful insights without signing up. Here is what is included.
Method
Da Yun is derived from the birth chart, gender, yin-yang direction, and the solar-term boundary around birth. This tool shows the timing layer first, then lets users decide whether they need a deeper paid interpretation.
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Birth year, month, day, and hour are converted into Heavenly Stems and Earthly Branches.
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The calculation determines whether cycles move forward or backward and when the first decade begins.
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Each 10-year pillar is shown with age range, elements, and the current cycle highlight.
The 10-Year Luck Calculator gives you powerful insights without signing up. Here is what is included.
See every 10-year luck cycle from birth onward. Tap any cycle to reveal its Heavenly Stem, Earthly Branch, hidden stems, and Ten God relationship.
Watch how the five elements — Wood, Fire, Earth, Metal, Water — shift across your life cycles in an interactive stacked-bar chart.
Know exactly where you are in your current cycle with a progress bar, and see how upcoming years relate to your luck pillar.
Select any two cycles and compare them side-by-side — see how elements, Ten Gods, and life themes change between periods.
FAQ
A 10-year luck cycle, or Da Yun, is a decade-level timing pillar used to read the changing environment around a BaZi chart.
Traditional Da Yun direction depends on gender and the yin-yang quality of the birth-year stem, so the same birth date can produce a different sequence.
No. The free calculator shows the table, current cycle, and a short element summary. Paid reports interpret the whole chart and timing interaction in depth.
For BaZi, true solar time can matter when birth time is close to a two-hour boundary. Use longitude values when accuracy is important.
The public page gives users a useful free result and keeps the deeper report as an intentional upgrade path.