← Free kitchen toolsFree baker’s percentage calculator

Calculate baker’s percentage and true dough hydration.

Calculate true hydration, baker’s percentages and the flour/water hidden inside your starter — then scale the same formula to however many loaves or pizza balls you need.

Try:
1
Your formula

Enter everything by weight.

Weights in

“Other ingredients” is for things like oil, sugar or malt. It affects total dough weight, but it does not count as water when hydration is calculated.

True formula
75%

hydration

Includes 100 g water and 100 g flour from the starter.

Total flour1 kg100%
Total water750 g75%
Salt2%of total flour
Starter / preferment20%of total flour
Prefermented flour10%of total flour
Total dough1.77 kg
2
Scale the batch

How much dough do you actually need?

Target batch1.77 kg2 × 885 g
Flour900 g
Water650 g
Starter200 g
Salt20 g
Dough reality check

Baker’s percentages are ratios. Flour still has opinions.

  • True hydration includes the flour and water inside your 100% hydration starter.
  • Hydration is a useful ratio, not a guarantee of dough feel. Different flours absorb water differently.
How baker’s percentage works

Flour is always the 100% reference point.

A 70% hydration dough has 70 parts water for every 100 parts flour by weight. Salt at 2% means 2 parts salt for every 100 parts flour. That makes formulas easy to compare and scale.

If you use starter, the calculator splits it into its flour and water first. A 200 g starter at 100% hydration contains 100 g flour and 100 g water, so both belong in the true totals.

Hydrationtotal water ÷ total flour × 100
Ingredient %ingredient weight ÷ total flour × 100
Once the formula is right

Keep the recipe in Savor.

Save the version you actually bake, scale it when the batch changes and keep your kitchen notes with the recipe instead of on another scrap of paper.

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