Almanac & sky · NUMORA

Yarrow Stalk Calculator

Yarrow probabilities from the Great Treatise, with the 1/16 shown in the result.

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How to use

Old yin is the rarest. Moving lines weigh more than in the coin method.

Formula

6:1/16 · 7:5/16 · 8:7/16 · 9:3/16

FAQ

Is this Yarrow Stalk calculator accurate?

The formula and assumptions are shown on the page, and the engine is covered by audit tests. Results are for reference — not financial or medical advice.

Do I need an account?

No. Calculations run in your browser. Recents can stay on this device.

What inputs do I need?

Old yin is the rarest. Moving lines weigh more than in the coin method.

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