Convert Cups to Ounces
Cups to ounces for real ingredients — flour, sugar, butter and more — with a live, ingredient-aware converter.
Cups to Ounces formula
Cups measure volume and ounces measure weight, so the conversion runs through the ingredient's density. For flour (all-purpose):
ounces = cups × 4.41 (for flour (all-purpose))
Worked example
1 cup of flour (all-purpose) = 4.41 ounces.
1 cup in ounces, by ingredient
| Ingredient | 1 cup ≈ |
|---|---|
| Water | 8.35 ounces |
| Milk | 8.6 ounces |
| Flour (all-purpose) | 4.41 ounces |
| Sugar (granulated) | 7.05 ounces |
| Brown sugar (packed) | 7.76 ounces |
| Powdered sugar | 4.24 ounces |
| Butter | 8 ounces |
| Vegetable oil | 7.69 ounces |
| Honey | 11.99 ounces |
| Salt (table) | 10.01 ounces |
| Cocoa powder | 3.53 ounces |
| Rice (uncooked) | 7.05 ounces |
| Rolled oats | 3.17 ounces |
Values use standard kitchen densities; real-world scooping and packing vary a little, so round sensibly when baking.
Common uses
Converts a cup of an ingredient into its weight in ounces — useful for older American recipes and postal-scale measuring.
Related conversions
Need a different pair or ingredient? Use the full cooking measurement converter.
Frequently asked questions
How many ounces is 1 cup of flour (all-purpose)?
About 4.41 ounces. The exact figure depends on how the ingredient is scooped or packed, so treat it as a reliable baking estimate.
Why does the ingredient matter?
Cups measure volume while ounces measure weight, and every ingredient has a different density — a cup of flour weighs far less than a cup of honey. Pick the ingredient in the converter to get the right factor.
Which cup and spoon sizes does this use?
US customary sizes: 1 cup = 236.6 ml, 1 tablespoon = 14.8 ml, 1 teaspoon = 4.9 ml. Metric cups (250 ml) will differ slightly.