Flour Protein Blend Calculator
Blend two flours together to reach a target protein percentage. Enter the protein level of each flour and the desired total weight.
%
%
%
grams
Flour A Weight
250 g
Resulting Protein12.0 %
Flour A Percentage50.0 %
How to Blend Flours for Target Protein
Formula (Weighted Average / Alligation)
Flour B fraction = (Target - Flour A protein) / (Flour B protein - Flour A protein)
Flour A fraction = 1 - Flour B fraction
This linear blending formula works because protein content mixes proportionally by weight. It assumes both flours have the same moisture content (approximately true for most commercial flours).
Common Flour Proteins
Example Calculation
Blend 10% AP flour and 14% bread flour to get 12% protein, 500 g total.
- 01Flour B fraction = (12 - 10) / (14 - 10) = 2/4 = 0.50
- 02Flour A = 500 x 0.50 = 250 g
- 03Flour B = 500 x 0.50 = 250 g
- 04Check: (250 x 10 + 250 x 14) / 500 = 12.0%
Frequently Asked Questions
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