Gān Zhī · 干支 · Wǔ Yùn Liù Qì
Your patient's constitution, from one birthdate.
StemMap builds the complete Stems & Branches map in seconds — the five-element wheel and every analysis table. Accurate, printable, and saved to your records. No charts. No arithmetic. No mistakes.
See a sample map now. Create a free account for 3 complete maps a month.
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The problem
Building these maps by hand is slow — and easy to get wrong.
One map means cross-referencing a master chart with a date-boundary table, resolving the year and half, then placing organs, dots, lines and five side tables correctly. Minutes per patient — and a single misplaced dot changes the clinical reading entirely.
How it works
Three steps. Fifteen seconds.
Enter a birthdate
Type the day, month and year. Three fields, auto-advancing — faster than a date picker for a 1958 birthdate.
StemMap resolves the map
The year, the half-year boundary, the stem, the branch, the great movement, the six divisions — all looked up from the 240 verified maps.
Read the wheel and tables
The five-element wheel with all organ placements, the connecting line, the inner-energy dots, and every analysis table. Print it, save it, use it.
Accuracy
Built from the classical master chart and date-boundary tables.
Every one of the 240 maps was generated from the canonical Stems & Branches master chart and the 1924–2043 date-boundary table, then verified against hand-drawn originals. No live calculation, no approximation — just a lookup into a pre-computed, pre-checked dataset.
Who it's for
Built for the people who use this method.
Practitioners
Already using Stems & Branches? Stop building maps by hand. Build one in seconds, save it to your patient library, print it for the file.
Students
Learning the method? Build map after map and see how each birthdate changes the wheel. Free, unlimited, and always accurate.
Pricing
Simple pricing for a focused tool.
Three complete maps a month, free. Upgrade for more maps, patient library, and printing.
Free
- 3 complete maps a month
- Full wheel, inner-energy dots and connecting line
- All five analysis tables
- Live sample map on the homepage, no account needed
Practitioner
- 15 complete maps a month
- Patient library with search
- Clinical notes and visit history
- Print and clinic-branded PDF export
Lifetime
- Everything in Practitioner, plus:
- Unlimited maps — forever
- Adjustable label positions
- No monthly billing
- All future features included
FAQ
Questions practitioners ask.
No. StemMap builds the constitutional birth map — the five-element wheel and analysis tables based on your patient's birthdate. It does not calculate open acupoints by day or hour (Zǐ Wǔ Liú Zhù or Líng Guī Bā Fǎ). For timing tools, see chronoacupuncture.com.
Every map is pre-computed from the canonical Stems & Branches master chart and the 1924–2043 date-boundary tables, then verified against hand-drawn originals. There are 240 maps in total — one for each half-year in the 120-year range. The tool performs a lookup, not a live calculation, so the values you see are exactly the values in the classical tables.
Yes. StemMap is a reference tool, not a practice-management suite. It doesn't replace Jane, Zanda, or zHealth — it sits alongside them, giving you the constitutional map your practice software doesn't provide.
Yes. A live sample map is on the homepage — no account needed. A free account gives you 3 complete maps a month, and every one is the full map: wheel, inner-energy dots, connecting line and all five analysis tables. Nothing is withheld from a free map.
Saved patients are never deleted. You keep read access to everything you have already saved, and you return to 3 new maps a month. You can export everything at any time from Settings.
Stop drawing maps by hand.
Build your next patient's constitutional map in fifteen seconds — accurate, printable, and saved to your records.
Build a map freeA live sample map is on the homepage — no account needed.