Conversion formula

The conversion factor from cups to fluid ounces is 8, which means that 1 cup is equal to 8 fluid ounces:

1 cup = 8 fl oz

To convert 391 cups into fluid ounces we have to multiply 391 by the conversion factor in order to get the volume amount from cups to fluid ounces. We can also form a simple proportion to calculate the result:

1 cup → 8 fl oz

391 cup → V_{(fl oz)}

Solve the above proportion to obtain the volume V in fluid ounces:

V_{(fl oz)} = 391 cup × 8 fl oz

V_{(fl oz)} = 3128 fl oz

The final result is:

391 cup → 3128 fl oz

We conclude that 391 cups is equivalent to 3128 fluid ounces:

391 cups = 3128 fluid ounces

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 fluid ounce is equal to 0.00031969309462916 × 391 cups.

Another way is saying that 391 cups is equal to 1 ÷ 0.00031969309462916 fluid ounces.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that three hundred ninety-one cups is approximately three thousand one hundred twenty-eight fluid ounces:

391 cup ≅ 3128 fl oz

An alternative is also that one fluid ounce is approximately zero times three hundred ninety-one cups.

Conversion table

cups to fluid ounces chart

For quick reference purposes, below is the conversion table you can use to convert from cups to fluid ounces