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 80 cups into fluid ounces we have to multiply 80 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

80 cup → V_{(fl oz)}

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

V_{(fl oz)} = 80 cup × 8 fl oz

V_{(fl oz)} = 640 fl oz

The final result is:

80 cup → 640 fl oz

We conclude that 80 cups is equivalent to 640 fluid ounces:

80 cups = 640 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 0.0015625 × 80 cups.

Another way is saying that 80 cups is equal to 1 ÷ 0.0015625 fluid ounces.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that eighty cups is approximately six hundred forty fluid ounces:

80 cup ≅ 640 fl oz

An alternative is also that one fluid ounce is approximately zero point zero zero two times eighty 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