How to convert us cups to us fluid ounces
To convert a measurement in us cups to us fluid ounces, multiply the value by 8. The conversion factor comes from the relationship between both units and the liter.
For example, to convert 5 cup to us fluid ounces: 5 × 8 = 40 fl oz.
What is a us cup?
A US cup is a US customary cooking measure equal to 8 fluid ounces or about 236.6 milliliters. The US legal cup used on nutrition labels is 240 mL, while the customary cooking cup is about 236.6 mL. The cup became the backbone of American home-cooking recipes, unlike the weight-based approach common elsewhere.
Common uses of us cups include: US recipe ingredient measurements; Coffee maker and kettle capacity; Serving sizes on US nutrition labels; Baking and portioning at home.
What is a us fluid ounce?
A US fluid ounce is a US customary unit of liquid volume equal to 1/8 of a cup or about 29.57 milliliters. The fluid ounce measures volume, not weight, and the US version differs from the slightly smaller imperial fluid ounce (about 28.4 mL). It is the standard unit for labeling drink and cosmetic volumes in the US.
Common uses of us fluid ounces include: Drink and beverage container labeling in the US; Cosmetic and personal-care product volumes; Recipe liquid quantities; Bar and cocktail measurements.
US Cups to us fluid ounces worked examples
Here are some common values converted:
1 cup = 8 fl oz 5 cup = 40 fl oz 10 cup = 80 fl oz 50 cup = 400 fl oz 100 cup = 800 fl oz
Frequently asked questions
How many us fluid ounces are in one us cup?
One us cup (cup) equals 8 us fluid ounces (fl oz). Multiply any value in us cups by 8 to convert to us fluid ounces.
How do I convert us cups to us fluid ounces?
Multiply the value in us cups by 8. For example, 5 cup × 8 = 40 fl oz.
How do I convert us fluid ounces to us cups?
Multiply the value in us fluid ounces by 0.125, or divide by 8. Use the swap button on the converter above to reverse the direction.
Is the us cup to us fluid ounce conversion exact?
Conversions between metric volumes are exact by definition. US and imperial volumes are defined exactly relative to the liter, so these factors are exact.
What is the formula for us cups to us fluid ounces?
The formula is: fl oz = cup × 8. This comes from the definition of both units relative to the liter.