Tools

Calculator

Deterministic book math — hydration, baker's percentages, scaling, feeding, dough temperature, flour blends and inclusions. Every result shows the formula it came from.

Hydration

Ch. 5

What's the true hydration of my dough?

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Baker's percentage

Ch. 5

What are my baker's percentages?

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Recipe scaler

Ch. 5

Scale this formula up or down

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Starter feeding

Ch. 3–4

How much flour and water for the next feed?

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Dough temperature

Ch. 2 & 6

What temperature should my water be?

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Flour blend

Lab+Ch. 5 & 13

How do I build this flour blend?

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Inclusion

Lab+Ch. 13

How much of this inclusion should I add?

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Calculations only — the numbers shown are direct results of the book's formulas, never recommendations. Hydration, baker's percentage, recipe scaling, starter feeding and dough temperature are open to every baker. Flour Blend and Inclusion are Lab+ features, marked Lab+ above, and open on a Lab+ plan.