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Cooking conversion
Cups of Bread Flour to Ounces
How many ounces are in cups of bread flour? Type a value below to see the result instantly. Cooking conversions depend on the density of each ingredient — the math here uses 0.508 g/mL for bread flour.
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1 cup of bread flour = 4.2395 oz
Cups of Bread Flour to Ounces Conversion Table
Common values for bread flour:
| Cups of bread flour | Ounces |
|---|---|
| 0.25 cup | 1.0599 oz |
| 0.5 cup | 2.1197 oz |
| 1 cup | 4.2395 oz |
| 2 cup | 8.4789 oz |
| 3 cup | 12.7184 oz |
| 4 cup | 16.9578 oz |
| 5 cup | 21.1973 oz |
| 8 cup | 33.9157 oz |
| 10 cup | 42.3946 oz |
How this works
Bread flour has a density of about 0.508 g/mL (king arthur baking: 1 cup = 120g). That means 1 mL of bread flour weighs 0.508 grams.
Ounces = cups × 4.2395
Note: Spooned and leveled. Same volumetric density as all-purpose in standard cooking references.
Why a cup of bread flour doesn't always weigh the same
Volume measurements are forgiving in some ways and brutal in others. A cup of bread flour can vary by 10-20% in weight depending on how it's measured: spooned vs scooped, packed vs loose, sifted vs unsifted. The density figure used here matches the most common published recipe conventions, but if you're after baking precision, weighing on a kitchen scale is more accurate than measuring by volume.