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 18 cups into fluid ounces we have to multiply 18 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

18 cup → V_{(fl oz)}

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

V_{(fl oz)} = 18 cup × 8 fl oz

V_{(fl oz)} = 144 fl oz

The final result is:

18 cup → 144 fl oz

We conclude that 18 cups is equivalent to 144 fluid ounces:

18 cups = 144 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 0.0069444444444444 × 18 cups.

Another way is saying that 18 cups is equal to 1 ÷ 0.0069444444444444 fluid ounces.

Approximate result

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

18 cup ≅ 144 fl oz

An alternative is also that one fluid ounce is approximately zero point zero zero seven times eighteen 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