Kitchen conversion
how many ounces in a cup of flour
1 oz all-purpose flour = 0.2268 cup.
Ounce → Cup · all purpose flour
1 oz all-purpose flour → Cup
1 oz all-purpose flour = 0.2268 cup. Use the calculator below to change the amount, switch units, or convert a full recipe list while cooking.
Because ounce and cup span volume and weight, this page uses all-purpose flour density (~125g per US cup). Other ingredients will convert differently.
Tip: for baking, weighing in grams is more consistent than cups. Convert once, then scale the recipe up or down without re-measuring every spoon.
FAQ
How Many Ounces In A Cup Of Flour?
1 oz all-purpose flour = 0.2268 cup.
Is this oz to cup conversion exact?
Volume ↔ weight depends on ingredient density. We use common US baking averages (e.g. flour ≈ 125g per cup).
US cup or metric cup?
This site uses the US legal cup (240ml-class cooking cup ≈ 236.588 ml) common in American recipes.
Are ounces weight or fluid ounces?
“Ounces in a cup” for liquids is usually fluid ounces (8 fl oz per cup). Weight ounces need an ingredient.
Why do flour cup-to-gram charts differ?
Scooping packs flour differently. 120–130g per cup is common; we default to 125g for all-purpose flour.