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Bread Hydration Calculator

Hydration % of a bread or sourdough recipe.

Compute the hydration percentage of a bread recipe (water ÷ flour, baker's percentage), with a quick interpretation band.

Nadia Almasri By Nadia Almasri
Published Last reviewed 1 min read

Inputs

g
g

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Hydration % = water_g / flour_g × 100

In depth

Compute the hydration percentage of a bread recipe (water ÷ flour, baker's percentage), with a quick interpretation band.