Cooking
Bakers Percentage Calculator
Turn flour weight and baker’s percentages into water, salt, yeast, and dough weight.
Free to use — no sign-up or login.
Water
g
Salt
g
Yeast
g
Dough
g
Amortization schedule
| # | Date | Payment | Principal | Extra | Interest | Balance |
|---|---|---|---|---|---|---|
Bread formulas treat the flour as the whole. Water, salt, and yeast are shares of that flour, so 66% water on 500 g of flour is 330 g of water.
When the recipe asks for fresh yeast and you have instant, the yeast conversion changes the yeast weight. This page already expects the yeast type you will weigh.
Hydration is the water row
66% means water weighs 66% of the flour. Oil, honey, and milk are not in that row. If a dough uses them, they are extra ingredients this form does not hold.
King Arthur’s sample, in grams
Their sample formula is flour 100%, water 66%, salt 2%, yeast 1.2%. On 500 g of flour that is 330 g water, 10 g salt, and 6 g yeast. The dough is 846 g. Grams are rounded to the nearest gram.
Worked example: 500 g of flour
Flour 500, water 66, salt 2, yeast 1.2. Water is 330 g, salt is 10 g, yeast is 6 g, and the dough is 846 g. The stacked bar starts on this dough.
\[ 500\times 0.66=330,\ 500+330+10+6=846 \]
Frequently asked questions
Why is flour 100% when the dough is heavier?
Baker’s percent is not a share of the finished dough. Flour is the baseline, so the other rows can add up past 100.
Is 66% the hydration if I also add oil?
On this page, yes, because only the water row is counted. Oil would raise the true moisture and it is not in the form.
Why is the yeast 6 g and not 6.0?
Grams round to the nearest gram. 1.2% of 500 g is 6 g exactly.
Can I enter a starter?
Only if you already know how much of it is flour and how much is water. This form has one flour and one water.
Does the bar change when I change salt?
Yes. The salt and yeast bars stay wide enough to see when the percentage is small.
References
Assumptions and limitations
Hydration is the water row only, not oil, honey, or milk. Grams round to the nearest gram. One flour, one water, one salt, one yeast.