Fluid Ounces to Cups (fl oz to cups) Converter

Enter US fluid ounces to get US cups.

1 US cup = 8 US fl oz

From
To
0.125
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Step-by-stepUS fl oz → US cup
11 US cup = 8 US fl ozformula
21 ÷ 8substitute
30.125 US cupresult
4≈ less than 1/4 cupmeasuring cups
URLiunitconverter.com/volume/fluid-ounces-to-cups?value=1Open
1 US fl oz in every unit
ml
Milliliter
1 ml = 1 cm³
29.57353 ml
L
Liter
1 L = 1,000 ml
0.02957353 L
m³
Cubic meter
1 m³ = 1,000 L
0.00002957353 m³
tsp
Teaspoon
US teaspoon ≈ 4.93 ml
6 tsp
tbsp
Tablespoon
US tablespoon = 3 tsp
2 tbsp
US fl oz
US fluid ounce
1/128 US gallon
1 US fl oz
US cup
US cup
US cup = 8 US fl oz
0.125 US cup
metric cup
Metric cup
AU / NZ / CA recipes
0.11829412 metric cup
US pt
US pint
US pint = 16 US fl oz
0.0625 US pt
US qt
US quart
US quart = 2 US pints
0.03125 US qt
US gal
US gallon
231 cubic inches
0.0078125 US gal
UK fl oz
UK fluid ounce
1/160 UK gallon
1.0408427 UK fl oz
UK pt
UK pint
UK pint = 20 UK fl oz
0.052042137 UK pt
UK gal
UK gallon
4.54609 L exactly
0.0065052671 UK gal

US fluid ounces to US cups Formula

US cups = US fluid ounces ÷ 8

One US cup is 8 US fluid ounces, by definition, so the conversion is exact. For example, 12 US fl oz ÷ 8 = 1.5 US cup.

Drink Sizes in Cups

DrinkFluid ouncesCups
Small coffee8 fl oz1 cups
Soda can12 fl oz1.5 cups
Pint glass (US)16 fl oz2 cups
Large soda32 fl oz4 cups

The US Kitchen Ladder

US liquid measures double at each step, which makes them easy to convert in your head.

UnitFluid ouncesCups
Cup81
Pint162
Quart324
Half gallon648
Gallon12816

US fluid ounces to US cups Table

US fluid ounces (US fl oz)US cupsMeasure with
1 US fl oz0.125 US cupless than 1/4 cup
2 US fl oz0.25 US cup1/4 cup
3 US fl oz0.375 US cup1/3 cup
4 US fl oz0.5 US cup1/2 cup
5 US fl oz0.625 US cup2/3 cup
6 US fl oz0.75 US cup3/4 cup
8 US fl oz1 US cup1 cup
10 US fl oz1.25 US cup1 1/4 cups
12 US fl oz1.5 US cup1 1/2 cups
16 US fl oz2 US cup2 cups
20 US fl oz2.5 US cup2 1/2 cups
24 US fl oz3 US cup3 cups
32 US fl oz4 US cup4 cups
48 US fl oz6 US cup6 cups
64 US fl oz8 US cup8 cups
128 US fl oz16 US cup16 cups

Common Questions

How many cups is 8 oz?
8 US fluid ounces is exactly 1 cup.
How many cups is 16 oz?
16 fluid ounces is 2 cups, one US pint.
How many cups is 12 fl oz?
12 fluid ounces is 1 1/2 cups.
How many cups are in a gallon?
16 US cups.