Ounces to Cups Converter

Fluid Ounces (fl oz)	Cups	Common Use
1 fl oz	0.125 cups	⅛ cup
2 fl oz	0.25 cups	¼ cup
3 fl oz	0.375 cups	⅜ cup
4 fl oz	0.5 cups	½ cup
5 fl oz	0.625 cups	⅝ cup
6 fl oz	0.75 cups	¾ cup
8 fl oz	1 cup	Standard cup
10 fl oz	1.25 cups	1¼ cups
12 fl oz	1.5 cups	Standard can
16 fl oz	2 cups	1 pint
24 fl oz	3 cups	Large bottle
32 fl oz	4 cups	1 quart
48 fl oz	6 cups	—
64 fl oz	8 cups	½ gallon
128 fl oz	16 cups	1 gallon

How to Convert Ounces to Cups

To convert fluid ounces to cups, simply divide the number of fluid ounces by 8. One US cup equals exactly 8 fluid ounces. This conversion is essential for cooking and baking, where recipes may list ingredients in either measurement.

For example, 16 fl oz ÷ 8 = 2 cups. To convert cups back to ounces, multiply by 8: 2 cups × 8 = 16 fl oz.

Quick Kitchen Reference

• 2 tablespoons = 1 fl oz
• ¼ cup = 2 fl oz
• ⅓ cup ≈ 2.67 fl oz
• ½ cup = 4 fl oz
• 1 cup = 8 fl oz
• 1 pint = 16 fl oz = 2 cups
• 1 quart = 32 fl oz = 4 cups
• 1 gallon = 128 fl oz = 16 cups

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