The sourdough calculator has been created to help all hobby bakers, who want to fast and easy calculate what to mix, to reach the required amount of sourdough in a recipe.

Scroll to the end of this page to see some examples and further information regarding each field.

Information about the sourdough and the needed amount of sourdough starter

Ratio flour to sourdough starter

This is the second number of your feeding ratio. For example if you would feed 1:2:3, you should introduce 2.

Ratio water to sourdough starter

This is the third number of your feeding ratio. For example if you would feed 1:2:3, you should introduce 3.

How much sourdough starter do you need for your recipe? (g)

Introduce here the needed amount of sourdough for the recipe you want to bake.

How much sourdough starter would you like to keep in the fridge for further bakes? (g)

Introduce here the amount of sourdough you would like to have extra to keep in the fridge for further bakes. In case you don’t want any extra sourdough starter simply introduce 0.

Result of the calculation

Here you can see the result of the calculation for the input data you provided.