Free sourdough calculator

Hydration is the total: all water, including water already in the starter, divided by all flour, including flour already in the starter. Starter and salt percentages are of the recipe flour. Units are grams. US$0 / KSh 0.

Dough

Flour (g)

Hydration, total (%)

Starter (% of flour)

Starter’s hydration (%)

Salt (% of flour)

Feed the starter

Starter to keep (g)

Starter parts

Water parts

Flour parts

The Android app, Sourdough Calculator, has the same maths in large type, offline, with a German interface and an optional starter log. About the app. Google Play — coming soon.