Dough Ratio HydrationBaker's %LevainPizza

Home › Sourdough hydration calculator › 100 g starter: what flour?

100g starter: how much flour?

The answer

Divide the starter by the percentage your recipe uses:

Starter as % of flourFlour for 100 g starter
10%1,000 g
15%667 g
20%500 g
25%400 g

How it is worked out

100 g ÷ 20% = 500 g of flour. 100 g of a 100% starter holds 50 g flour and 50 g water.

Try other numbers

Units

What do you want to do?

Only have cups?

Weigh one level cup of your flour and of water once, and type the weights. Cups are then shown as a rough guide.

Bench card

Weights are rounded. Percentages are of the total flour unless a label says otherwise.

Link to these numbers

My recipes (saved in this browser only)

Questions people ask

How much flour for 100g of starter?

At 10% it is 1,000 g, 15% it is 667 g, 20% it is 500 g, 25% it is 400 g.

How much flour and water are in 100g of starter?

At 100% hydration, 50 g flour and 50 g water.

Which percentage should I use?

Use the one in your recipe. This page only turns a percentage into grams.

More examples

Calculators: Sourdough hydration calculator · Reverse baker's percentage calculator