everyday calculator

Bakers Percentage Calculator

Calculate an ingredient's baker's percentage from one or more flour weights and show each flour's blend share.

Bakers Percentage Calculator

Ingredient baker's percentage

Enter flour and ingredient weights to calculate the flour-based ratio.

Baker's percentage uses total flour, not total dough weight, as 100%.

Formula version 1.0.0

How to use this calculator

Enter one or more flour weights in the same unit.
Enter the ingredient weight in that unit.
Select Calculate.
Read total flour, ingredient baker's percentage, and each flour's blend share.

Symbols and units

Symbol	Meaning	Unit or domain
`Fᵢ`	Individual flour weight	weight
`F`	Total flour weight	weight
`I`	Ingredient weight	weight
`B%`	Ingredient baker's percentage	%

Checked examples

Single flour hydration

Inputs: 500 flour, 330 water

Calculation: 330÷500×100

Result: 66%

Flour is the 100 percent reference in baker's math.

Check: bakers-percentage-core.test.ts

Multi-flour blend

Inputs: Flours 700, 200, 100; ingredient 40

Calculation: Total flour=1000; ingredient=40÷1000×100

Result: 4%; flour shares 70%, 20%, 10%

All flours contribute to the reference total.

Check: bakers-percentage-core.test.ts

Assumptions, rounding, and limits

All weights use one unit.
Total flour weight is positive.
Ingredient weight is non-negative.
The calculator reports formulation ratios, not food-safety or process guidance.

Frequently asked questions

Why is flour always 100%?

Total flour is the reference weight used as the denominator.

Can I mix grams and ounces?

No. Convert every weight to one unit first.

Can ingredient percentage exceed 100%?

Yes. An ingredient may weigh more than total flour; baker's percentage is a ratio, not a composition total.

Sources and review

King Arthur Baking: Baker's Percentage — Ingredient weight relative to total flour
King Arthur Baking: What is baker’s math, and how can I use it in my everyday bread baking? — Baker's math examples

Formula version: bakers.percentage@1.0.0
Formula review: Equatara formula review
Editorial review: Equatara editorial review
Last verified: 2026-10-25
Applicability: Same-unit formula weights; no process or food-safety advice.
Next review: On material formula/source change, or by 2028-10-25.

Found a problem?

Report a formula, result, example, source, or accessibility issue through the calculator correction process. Do not include sensitive input values.