Sourdough hydration and recipe scaling calculator Sourdough hydration and recipe scaling calculator

Quick start

Account for flour and water in the starter. Analyse an existing recipe or build a batch from dough weight, hydration and prefermented flour; export the ingredient list.

  1. Replace the example with your values and check units.
  2. Select Calculate and review the result below.
  3. Save CSV, JSON or a printable report from the last calculation.

Sourdough hydration and recipe scaling calculator

Account for flour and water in the starter. Analyse an existing recipe or build a batch from dough weight, hydration and prefermented flour; export the ingredient list.

All percentages use total flour, including flour in the starter. Starter hydration is water divided by starter flour. Example quantities are editable; grams are mass, not volume.

The recipe includes flour, water, starter and salt only. Additional ingredients change dough weight. This calculator does not predict fermentation time, starter activity or baking losses.

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