Cooking & nutrition

Baker's percentage calculator

The amounts of water, salt and yeast for your bread from the flour weight and hydration.

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How it works

Everything is a % of the flour weight (= 100%). 60-65% hydration: firm dough; 70-80%: soft, open crumb (ciabatta style). Sourdough starter also brings flour and water (50/50).

Results are for guidance only and do not replace professional advice.

Worked example

With the default values:

  • Flour (g)500
  • Hydration (%)68
  • Salt (%)2
  • YeastInstant dry yeast (≈ 0.7%)
  • Number of loaves1

you get:

  • Water340 g
  • Flour500 g
  • Salt10 g
  • Yeast3.5 g

Frequently asked questions

How does the “Baker's percentage calculator” tool work?

Everything is a % of the flour weight (= 100%). 60-65% hydration: firm dough; 70-80%: soft, open crumb (ciabatta style). Sourdough starter also brings flour and water (50/50).

What do I need to enter?

Just fill in: flour, hydration, salt, yeast, number of loaves. The result updates as you type.

Can you give an example?

Flour (g): 500; Hydration (%): 68; Salt (%): 2; Yeast: Instant dry yeast (≈ 0.7%); Number of loaves: 1 → Water: 340 g; Flour: 500 g.

Is this calculator free, and is my data private?

Yes. HOD Calc is completely free with no sign-up. The calculation runs in your browser: nothing you type is sent or stored.