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Cooking conversion
Cups of Cake Flour to Ounces
How many ounces are in cups of cake flour? Type a value below to see the result instantly. Cooking conversions depend on the density of each ingredient — the math here uses 0.491 g/mL for cake flour.
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1 cup of cake flour = 4.0976 oz
Cups of Cake Flour to Ounces Conversion Table
Common values for cake flour:
| Cups of cake flour | Ounces |
|---|---|
| 0.25 cup | 1.0244 oz |
| 0.5 cup | 2.0488 oz |
| 1 cup | 4.0976 oz |
| 2 cup | 8.1952 oz |
| 3 cup | 12.2928 oz |
| 4 cup | 16.3904 oz |
| 5 cup | 20.4879 oz |
| 8 cup | 32.7807 oz |
| 10 cup | 40.9759 oz |
How this works
Cake flour has a density of about 0.491 g/mL (king arthur baking: 1 cup = 116g). That means 1 mL of cake flour weighs 0.491 grams.
Ounces = cups × 4.0976
Note: Lighter than all-purpose due to finer milling. Sifted before measuring.
Why a cup of cake flour doesn't always weigh the same
Volume measurements are forgiving in some ways and brutal in others. A cup of cake 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.