Baker’s Percentage Calculator
Convert baker’s percentages into exact ingredient weights.
- Flour (100%)
- 500 g
- Water (65%)
- 325 g
- Salt (2%)
- 10 g
- Yeast (1%)
- 5 g
- Total dough weight
- 840 g
- Every ingredient is a percentage of the flour weight, which is always 100%.
- To scale a recipe up or down, just change the flour weight — the rest follows.
- The hydration of a dough is simply its water percentage.
Saved setups
Save your settings to reuse them later. They’re stored only on this device — nothing is uploaded.
What is the Baker’s Percentage Calculator?
Baker’s percentages express every ingredient relative to the flour, which is always 100%. This calculator turns those percentages into real gram weights: set your flour weight and the percentage of water, salt, yeast, sugar and fat, and get the whole recipe scaled instantly. It’s the cleanest way to scale a bread formula up or down — change only the flour weight and everything else follows automatically.
How to use the Baker’s Percentage Calculator
- 1 Enter your flour weight — this is the 100% baseline.
- 2 Set the percentage for water, salt, yeast and any extras.
- 3 Read each ingredient’s weight in grams and the total dough weight.
Frequently asked questions
What is baker’s percentage? +
It’s a way of writing recipes where every ingredient is a percentage of the total flour weight. Flour is 100%, and 65% water means 650 g of water for 1000 g of flour.
How do I scale a recipe with baker’s percentages? +
Just change the flour weight. Because every other ingredient is tied to the flour, the whole recipe rescales correctly — which is exactly what this calculator does.
How accurate are the results? +
The figures come from standard, tested references (USDA FoodData Central and King Arthur Baking) and are excellent starting points. Ovens, ingredients and equipment vary, so treat the numbers as a reliable guide and adjust to taste and doneness.
Is this calculator free, and does it send my data anywhere? +
Yes — it’s completely free and runs entirely in your browser. Nothing you type is uploaded or stored on a server; the maths happens on your device, even offline once the page has loaded.