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 421.5 cups into fluid ounces we have to multiply 421.5 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

421.5 cup → V_{(fl oz)}

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

V_{(fl oz)} = 421.5 cup × 8 fl oz

V_{(fl oz)} = 3372 fl oz

The final result is:

421.5 cup → 3372 fl oz

We conclude that 421.5 cups is equivalent to 3372 fluid ounces:

421.5 cups = 3372 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 0.00029655990510083 × 421.5 cups.

Another way is saying that 421.5 cups is equal to 1 ÷ 0.00029655990510083 fluid ounces.

Approximate result

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

421.5 cup ≅ 3372 fl oz

An alternative is also that one fluid ounce is approximately zero times four hundred twenty-one point 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