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Cups to oz Converter (US Cups to US Fluid Ounces)

1 US cup = 8 US fluid ounces. To convert cup to fl oz, multiply by 8.

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1 cup = 8 fl oz

1 cup
8 fl oz
1 fl oz
0.125 cup
10 cup
80 fl oz
100 cup
800 fl oz

How to convert Cups to oz

1 US cup equals 8 US fluid ounces, so the conversion is a single multiplication.

fl oz = cup × 8

Example: 2 cup × 8 = 16 fl oz.

About the US cup and the US fluid ounce

US Cup (cup)

The US customary cup is 8 US fluid ounces, about 236.6 mL. US nutrition labels use a rounded 240 mL cup.

US Fluid Ounce (fl oz)

The US fluid ounce is 1/128 of a US gallon, about 29.57 mL. It's a volume unit, not a weight.

1 US cup in every volume unit

Milliliters236.588 mLUS Fluid Ounces8 fl oz
Liters0.2366 L
US Gallons0.0625 gal
Tablespoons16 tbsp
Teaspoons48 tsp
US Quarts0.25 qtUS Pints0.5 pt
Imperial Gallons0.05204 imp gal
Imperial Quarts0.2082 imp qt
Imperial Pints0.4163 imp pt
Imperial Fluid Ounces8.327 imp fl oz
Metric Cups0.9464 metric cup
Deciliters2.366 dL
Centiliters23.659 cL
Cubic Meters0.0002366 m³
Cubic Centimeters236.588 cm³
Cubic Feet0.008355 ft³
Cubic Inches14.438 in³
Cubic Yards0.0003094 yd³
Oil Barrels0.001488 bbl
Acre-Feet1.918e-7 ac·ft
US Bushels0.006714 bu
US Pecks0.02686 pk
US Dry Pints0.4297 dry pt
oz to CupsReverse conversionml to oz1 mL = 0.03381 fl ozoz to ml1 fl oz = 29.5735 mLCups to ml1 cup = 236.5882 mLml to Cups1 mL = 0.004227 cupTbsp to Cups1 tbsp = 0.0625 cupCups to Tbsp1 cup = 16 tbspPints to Cups1 pt = 2 cupCups to Pints1 cup = 0.5 ptLiters to oz1 L = 33.814 fl ozoz to Liters1 fl oz = 0.02957 LGallons to oz1 gal = 128 fl oz

Quick answers

How many ounces in a cup?8 US fluid ouncesHow many cups in a quart?4 US cupsHow many teaspoons in a tablespoon?3 teaspoonsHow many ounces in a gallon?128 US fluid ouncesHow many liters in a gallon?3.785 litersHow many quarts in a gallon?4 US quartsHow many tablespoons in 1/4 cup?4 tablespoons

Guides

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Cups to oz FAQ

How many US fluid ounces are in a US cup?

1 US cup = 8 US fluid ounces.

How many US cups are in a US fluid ounce?

1 US fluid ounce = 0.125 US cups.

How do I convert cup to fl oz?

Use fl oz = cup × 8. For example, 10 cup = 80 fl oz.

Can I print this Cups to oz chart?

Yes. Use "Print / Save PDF" next to the converter for a one-page chart, or "Download CSV" to open it in Excel or Google Sheets.