Cups to Oz
Convert Cups to Fluid Ounces
"Cups to Oz" Calculator
How to Convert Cups to Fluid Ounces
Cups to Fluid Ounces Conversion Formula
To convert US cups to fluid ounces, use this simple formula:
fluid ounces = cups × 8
One US customary cup is defined as exactly 8 US fluid ounces. Note this is the fluid ounce of volume, not the ounce of weight (28.35 g) — for dry ingredients the weight of a cup depends on the ingredient, so this converter is for liquid volume only.
Step-by-Step Volume Conversion Guide
- Take your volume in US cups
- Multiply it by 8 (the number of fluid ounces in one US cup)
- Get your result in US fluid ounces
Common Cups to Fluid Ounces Conversions
Practical Applications of Cups to Oz Converter
- Cooking: Turning a recipe amount in cups into fluid ounces for a measuring jug
- Beverages: 1 cup of coffee is 8 fl oz; 2 cups is a 16 fl oz serving
- Baking: Scaling liquid ingredients when a jug is marked only in fluid ounces
- Meal prep: Working out how many fluid ounces a batch of stock or milk contains
- Nutrition: Comparing a cup serving with a drink label given in fluid ounces
- Bartending: Converting a cup of mixer into fluid ounces for a recipe
History and Origin of the Cup and Fluid Ounce
The cup as a cooking measure was standardized in the US so that 1 cup equals 8 US fluid ounces. The fluid ounce is a customary unit of volume, defined in the US as exactly 29.5735 ml (1/128 of a US gallon). Beware the ambiguity: the US customary cup is 8 fl oz (about 236.6 ml), the US "legal" cup used on nutrition labels is 240 ml, and the metric cup used in Australia and parts of Europe is 250 ml. This converter uses the US customary cup of 8 fluid ounces.
Quick Conversion Tips
The math is easy because 1 cup = 8 fl oz. To convert cups to fluid ounces in your head, multiply by 8: 2 cups × 8 = 16 fl oz, and ½ cup × 8 = 4 fl oz. Remember the milestones: 1 cup = 8 fl oz, 2 cups = 16 fl oz, and 4 cups = 32 fl oz.
See Also
- Ml to Oz - Convert Milliliters to Fluid Ounces
- Oz to Ml - Convert Fluid Ounces to Milliliters
- Oz to Cups - Convert Fluid Ounces to Cups
- Liters to Gallons - Convert Liters to US Gallons
- Gallons to Liters - Convert US Gallons to Liters
- Cups to Ml - Convert Cups to Milliliters
- Ml to Cups - Convert Milliliters to Cups
- Tablespoons to Cups - Convert Tablespoons to Cups
- Cups to Tablespoons - Convert Cups to Tablespoons
- Tsp to Ml - Convert Teaspoons to Milliliters
- Ml to Tsp - Convert Milliliters to Teaspoons
- Fl Oz to Liters - Convert Fluid Ounces to Liters
- Liters to Fl Oz - Convert Liters to Fluid Ounces
- Quarts to Liters - Convert US Quarts to Liters
- Liters to Quarts - Convert Liters to US Quarts
- Ml to L - Convert Milliliters to Liters
- L to Ml - Convert Liters to Milliliters
- Cups to L - Convert Cups to Liters
- L to Cups - Convert Liters to Cups
- Fl Oz to Gal - Convert Fluid Ounces to US Gallons
- How Many Fl Oz in a Gallon? - Convert US Gallons to Fluid Ounces
- Gal to Ml - Convert Gallons to Milliliters
- Ml to Gal - Convert Milliliters to Gallons
- Quarts to Gallons - Convert Quarts to Gallons
- Gallons to Quarts - Convert Gallons to Quarts
- Cc to Ml - Convert Cubic Centimeters to Milliliters
- Ml to Cc - Convert Milliliters to Cubic Centimeters
- L to UK Gallons - Convert Liters to UK Gallons
- UK Gallons to L - Convert UK Gallons to Liters
- L to Cubic Meters - Convert Liters to Cubic Meters
- Cubic Meters to L - Convert Cubic Meters to Liters
Last Results
0.667 cups to oz - 0.667 US cups = 5.34 fluid ounces
50 cups to oz - 50 US cups = 400 fluid ounces
41 cups to oz - 41 US cups = 328 fluid ounces
56 cups to oz - 56 US cups = 448 fluid ounces
33 cups to oz - 33 US cups = 264 fluid ounces
25 cups to oz - 25 US cups = 200 fluid ounces
0.333 cups to oz - 0.333 US cups = 2.66 fluid ounces
4 cups to oz - 4 US cups = 32 fluid ounces
1.5 cups to oz - 1.5 US cups = 12 fluid ounces
52 cups to oz - 52 US cups = 416 fluid ounces
0.5 cups to oz - 0.5 US cups = 4 fluid ounces
21 cups to oz - 21 US cups = 168 fluid ounces
29 cups to oz - 29 US cups = 232 fluid ounces
39 cups to oz - 39 US cups = 312 fluid ounces
35 cups to oz - 35 US cups = 280 fluid ounces
31 cups to oz - 31 US cups = 248 fluid ounces
14 cups to oz - 14 US cups = 112 fluid ounces
9 cups to oz - 9 US cups = 72 fluid ounces
18 cups to oz - 18 US cups = 144 fluid ounces
34 cups to oz - 34 US cups = 272 fluid ounces
7 cups to oz - 7 US cups = 56 fluid ounces
23 cups to oz - 23 US cups = 184 fluid ounces
51 cups to oz - 51 US cups = 408 fluid ounces
3.5 cups to oz - 3.5 US cups = 28 fluid ounces
16 cups to oz - 16 US cups = 128 fluid ounces
26 cups to oz - 26 US cups = 208 fluid ounces
1.667 cups to oz - 1.667 US cups = 13.34 fluid ounces
1.25 cups to oz - 1.25 US cups = 10 fluid ounces
5 cups to oz - 5 US cups = 40 fluid ounces
0.25 cups to oz - 0.25 US cups = 2 fluid ounces
5.5 cups to oz - 5.5 US cups = 44 fluid ounces
32 cups to oz - 32 US cups = 256 fluid ounces
37 cups to oz - 37 US cups = 296 fluid ounces
62 cups to oz - 62 US cups = 496 fluid ounces
13 cups to oz - 13 US cups = 104 fluid ounces
49 cups to oz - 49 US cups = 392 fluid ounces
64 cups to oz - 64 US cups = 512 fluid ounces
20 cups to oz - 20 US cups = 160 fluid ounces
42 cups to oz - 42 US cups = 336 fluid ounces
24 cups to oz - 24 US cups = 192 fluid ounces
60 cups to oz - 60 US cups = 480 fluid ounces
36 cups to oz - 36 US cups = 288 fluid ounces
1.75 cups to oz - 1.75 US cups = 14 fluid ounces
48 cups to oz - 48 US cups = 384 fluid ounces
40 cups to oz - 40 US cups = 320 fluid ounces
2 cups to oz - 2 US cups = 16 fluid ounces
15 cups to oz - 15 US cups = 120 fluid ounces
28 cups to oz - 28 US cups = 224 fluid ounces
17 cups to oz - 17 US cups = 136 fluid ounces
11 cups to oz - 11 US cups = 88 fluid ounces
55 cups to oz - 55 US cups = 440 fluid ounces
61 cups to oz - 61 US cups = 488 fluid ounces
43 cups to oz - 43 US cups = 344 fluid ounces
0.75 cups to oz - 0.75 US cups = 6 fluid ounces
58 cups to oz - 58 US cups = 464 fluid ounces
8 cups to oz - 8 US cups = 64 fluid ounces