How to convert ounces to cups of flour
Formula: cup = oz × 0.226796
Worked example: 8 oz → 8 × 0.226796 = 1.81 cup
A cup of all-purpose flour weighs about 4.4 ounces. A recipe that lists 9 oz of flour is asking for about 2 cups.
Ounces to cups of flour conversion chart
| Ounces (oz) | Cups of flour (cup) |
|---|---|
| 1 oz | 0.227 cup |
| 2 oz | 0.454 cup |
| 3 oz | 0.68 cup |
| 4 oz | 0.907 cup |
| 6 oz | 1.36 cup |
| 8 oz | 1.81 cup |
| 10 oz | 2.27 cup |
| 12 oz | 2.72 cup |
| 16 oz | 3.63 cup |
What is an ounce?
The avoirdupois ounce, 28.35 grams, is the weight unit of US kitchen scales. A cup of all-purpose flour weighs about 4.4 oz; it is not the same as a fluid ounce, which measures volume.
What is a cup of flour?
A US cup of all-purpose flour, spooned into the cup and leveled with a knife, weighs about 125 g. Scooping straight from the bag packs the flour and can add 20 to 30 g per cup, enough to make cakes dry.