OneEquals

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

1 US fluid ounce = 0.125 US cups. To convert fl oz to cup, multiply by 0.125, or divide by 8.

⇄

100 fl oz = 12.5 cup

1 fl oz
0.125 cup
1 cup
8 fl oz
10 fl oz
1.25 cup
100 fl oz
12.5 cup

How to convert oz to Cups

1 US fluid ounce equals 0.125 US cups, so the conversion is a single multiplication.

cup = fl oz × 0.125

Example: 150 fl oz × 0.125 = 18.75 cup.

About the US fluid ounce and the US 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.

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.

1 US fluid ounce in every volume unit

Milliliters29.574 mLLiters0.02957 LUS Gallons0.007813 galUS Cups0.125 cup
Tablespoons2 tbsp
Teaspoons6 tsp
US Quarts0.03125 qt
US Pints0.0625 pt
Imperial Gallons0.006505 imp gal
Imperial Quarts0.02602 imp qt
Imperial Pints0.05204 imp pt
Imperial Fluid Ounces1.041 imp fl oz
Metric Cups0.1183 metric cup
Deciliters0.2957 dL
Centiliters2.957 cL
Cubic Meters0.00002957 m³
Cubic Centimeters29.574 cm³
Cubic Feet0.001044 ft³
Cubic Inches1.805 in³
Cubic Yards0.00003868 yd³
Oil Barrels0.000186 bbl
Acre-Feet2.398e-8 ac·ft
US Bushels0.0008392 bu
US Pecks0.003357 pk
US Dry Pints0.05371 dry pt
Cups to ozReverse 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

GuideHow Much Concrete Do I Need for a Slab?Work out concrete for a slab in cubic yards and bags: length × width × thickness, with worked…GuideDry vs Liquid Measuring Cups: What’s the Difference?Dry and liquid measuring cups hold the same volume, but you fill and read them differently. When to…

All guides →

oz to Cups FAQ

How many US cups are in a US fluid ounce?

1 US fluid ounce = 0.125 US cups.

How many US fluid ounces are in a US cup?

1 US cup = 8 US fluid ounces.

How do I convert fl oz to cup?

Use cup = fl oz × 0.125. For example, 10 fl oz = 1.25 cup.

Can I print this oz to Cups 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.