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 645 cups into fluid ounces we have to multiply 645 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

645 cup → V_{(fl oz)}

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

V_{(fl oz)} = 645 cup × 8 fl oz

V_{(fl oz)} = 5160 fl oz

The final result is:

645 cup → 5160 fl oz

We conclude that 645 cups is equivalent to 5160 fluid ounces:

645 cups = 5160 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 0.0001937984496124 × 645 cups.

Another way is saying that 645 cups is equal to 1 ÷ 0.0001937984496124 fluid ounces.

Approximate result

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

645 cup ≅ 5160 fl oz

An alternative is also that one fluid ounce is approximately zero times six hundred forty-five 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