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VOLUME CONVERSION

How Many Cups Is 4 oz? (1 to 10 oz in Cups)

Quick answer0.5 cup (½ cup)

4 fl oz = 0.5 cup (½ cup).

Four fluid ounces is half a cup. Because a cup holds 8 fl oz, divide ounces by 8: 2 oz is ¼ cup, 3 oz is ⅜ cup, 5 oz is ⅝ cup and 6 oz is ¾ cup. For small amounts, tablespoons are easier: every fluid ounce is 2 tablespoons.

Fluid ounces to cups

Fl ozCupsTbspMl
1 fl oz0.125 cup (⅛ cup)2 tbsp29.6 ml
2 fl oz0.25 cup (¼ cup)4 tbsp59.1 ml
3 fl oz0.375 cup (⅜ cup)6 tbsp88.7 ml
4 fl oz0.5 cup (½ cup)8 tbsp118.3 ml
5 fl oz0.625 cup (⅝ cup)10 tbsp147.9 ml
6 fl oz0.75 cup (¾ cup)12 tbsp177.4 ml
7 fl oz0.875 cup (⅞ cup)14 tbsp207 ml
8 fl oz1 cup16 tbsp236.6 ml
9 fl oz1.13 cups (1⅛ cups)18 tbsp266.2 ml
10 fl oz1.25 cups (1¼ cups)20 tbsp295.7 ml

Ounces by weight to cups

For dry ingredients weighed on a scale, the cup amount depends on density:

Ingredient2 oz4 oz6 oz
All-purpose flour0.454 cup0.907 cup1.36 cups (about 1⅜ cups)
Bread flour0.446 cup0.893 cup (about ⅞ cup)1.34 cups (about 1⅓ cups)
Granulated sugar0.283 cup0.567 cup0.85 cup
Brown sugar0.258 cup (about ¼ cup)0.515 cup (about ½ cup)0.773 cup
Powdered sugar0.472 cup0.945 cup1.42 cups
Butter0.25 cup (¼ cup)0.5 cup (½ cup)0.749 cup (¾ cup)
Rolled oats0.63 cup (about ⅝ cup)1.26 cups (about 1¼ cups)1.89 cups (about 1⅞ cups)
Chocolate chips0.334 cup (⅓ cup)0.667 cup (⅔ cup)1 cups

Weights and volumes on this page use these grams-per-US-cup densities: all-purpose flour 125 g; bread flour 127 g; granulated sugar 200 g; brown sugar 220 g; powdered sugar 120 g; butter 227 g; rolled oats 90 g; chocolate chips 170 g. Packing, sifting and brand can shift real results by 5–15%, so weigh when a recipe depends on precision.

Common questions

How many cups is 3 fl oz?

3 fl oz = 0.375 cup (⅜ cup).

How many cups is 6 fl oz?

6 fl oz = 0.75 cup (¾ cup).

How many tbsp is 2 fl oz?

2 fl oz = 4 tbsp.

How many tbsp is 1 fl oz?

1 fl oz = 2 tbsp.

How many cups is 4 oz of all-purpose flour?

4 oz of all-purpose flour = 0.907 cup.

How many cups is 4 oz of butter?

4 oz of butter = 0.5 cup (½ cup).