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Sourdough Calculator

Calculate exact ingredients using baker's percentages

Enter your target dough weight, hydration, starter percentage, and salt percentage to get exact gram amounts. Accounts for flour and water contributed by the starter (assumed 100% hydration). Every gram matters in sourdough — use a scale.

How It Works

1

Upload a Photo (Optional)

Photograph an object to get its weight, or use the converter directly.

2

AI Estimates Weight

Our AI identifies the object and estimates its weight in your preferred unit.

3

See Converted Results

Get weight displayed in multiple units with instant conversion.

Why Sourdough Requires a Scale

Sourdough baking is precise — a 5% change in hydration transforms the dough from manageable to impossibly sticky. Baker's percentages (where flour = 100%) make scaling any recipe trivial, but only if you measure by weight. A $15 kitchen scale is the single best investment for sourdough baking.

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Sourdough Calculator FAQ