Sourdough Hydration Calculator

Choose your flour option below – select “Single Flour” if you’re working with one flour, or “Multiple Flour Blend” if you’re combining various flours.

Important Notes:

  • Overall hydration = (Total Liquid + Water from Starter) ÷ (Total Flour + Flour from Starter) × 100.
  • In the Single Flour option, the recipe flour weight is entered directly.
  • For blends, a weighted recommended hydration is calculated based on the mix.
  • The starter/levain splits into flour and water based on its hydration percentage.
  • Measure all ingredients in grams for best accuracy.

How to Use This Calculator:

  • Select “Single Flour” or “Multiple Flour Blend” above.
  • If using a single flour: choose it from the dropdown and enter its weight.
  • If using a blend: add each flour (using the rows provided) and its weight. Use the “X” button to delete a row.
  • Enter your liquid weight and sourdough starter details.
  • Click “Calculate Hydration” – the calculator will compute overall hydration and compare it to the recommended range.

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