Conversion formula

The conversion factor from fluid ounces to cups is 0.125, which means that 1 fluid ounce is equal to 0.125 cups:

1 fl oz = 0.125 cup

To convert 3121 fluid ounces into cups we have to multiply 3121 by the conversion factor in order to get the volume amount from fluid ounces to cups. We can also form a simple proportion to calculate the result:

1 fl oz → 0.125 cup

3121 fl oz → V_(cup)

Solve the above proportion to obtain the volume V in cups:

V_(cup) = 3121 fl oz × 0.125 cup

V_(cup) = 390.125 cup

The final result is:

3121 fl oz → 390.125 cup

We conclude that 3121 fluid ounces is equivalent to 390.125 cups:

3121 fluid ounces = 390.125 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 0.0025632809996796 × 3121 fluid ounces.

Another way is saying that 3121 fluid ounces is equal to 1 ÷ 0.0025632809996796 cups.

Approximate result

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

3121 fl oz ≅ 390.125 cup

An alternative is also that one cup is approximately zero point zero zero three times three thousand one hundred twenty-one fluid ounces.

Conversion table

fluid ounces to cups chart

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