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 51 fluid ounces into cups we have to multiply 51 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

51 fl oz → V_(cup)

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

V_(cup) = 51 fl oz × 0.125 cup

V_(cup) = 6.375 cup

The final result is:

51 fl oz → 6.375 cup

We conclude that 51 fluid ounces is equivalent to 6.375 cups:

51 fluid ounces = 6.375 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 0.15686274509804 × 51 fluid ounces.

Another way is saying that 51 fluid ounces is equal to 1 ÷ 0.15686274509804 cups.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that fifty-one fluid ounces is approximately six point three seven five cups:

51 fl oz ≅ 6.375 cup

An alternative is also that one cup is approximately zero point one five seven times fifty-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