Baking by the Numbers: Ratios, Hydration and Kitchen Conversions
Why great bakers weigh, not scoop — baker's percentages, dough hydration, ingredient ratios, oven temperatures and how to scale any recipe up or down with confidence.
Baker's Percentage Calculator
Verified formula Updated Jun 2026 Private — runs on your device
Verified formula
Private
Baker's percentage
65.00%
For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.
How to use the Baker's Percentage Calculator
The Baker's Percentage Calculator works out your baker's percentage in an instant. Enter flour weight and ingredient weight and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.
- Enter the flour weight.
- Enter the ingredient weight.
- Read off your baker's percentage — the calculator updates automatically, with no button to press.
Formula
The Baker's Percentage Calculator uses the formula:
Baker's percentage = Ingredient weight ÷ Flour weight × 100
Worked example
For example, with flour weight of 1,000 g and ingredient weight of 650 g, the baker's percentage is 65.00%.
| Flour weight | 1,000 g |
|---|---|
| Ingredient weight | 650 g |
| Baker's percentage | 65.00% |
|---|
Results are estimates for educational use, not professional advice.
Key terms explained
- Percentage
- A number expressed as a fraction of 100, written with the % sign.
Frequently asked questions
It expresses each ingredient as a percentage of the total flour weight, which is always 100%. 650 g of water to 1000 g of flour is 65%.
It makes recipes easy to scale up or down and to compare, since every ingredient is relative to the flour.
Yes. Because flour is the 100% base, water, salt, sugar and other ingredients add on top, so totals often exceed 100%.
Pick a new flour weight, then multiply each ingredient's percentage by it to get the new amounts.
The Baker's Percentage Calculator uses the formula: Baker's percentage = Ingredient weight ÷ Flour weight × 100. For example, with flour weight of 1,000 g and ingredient weight of 650 g, the baker's percentage is 65.00%.
Enter the flour weight. Enter the ingredient weight. Read off your baker's percentage — the calculator updates automatically, with no button to press.
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