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Unit Converter

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 30.8 fluid ounces into cups we have to multiply 30.8 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

30.8 fl oz → V(cup)

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

V(cup) = 30.8 fl oz × 0.125 cup

V(cup) = 3.85 cup

The final result is:

30.8 fl oz → 3.85 cup

We conclude that 30.8 fluid ounces is equivalent to 3.85 cups:

30.8 fluid ounces = 3.85 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 0.25974025974026 × 30.8 fluid ounces.

Another way is saying that 30.8 fluid ounces is equal to 1 ÷ 0.25974025974026 cups.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that thirty point eight fluid ounces is approximately three point eight five cups:

30.8 fl oz ≅ 3.85 cup

An alternative is also that one cup is approximately zero point two six times thirty point eight 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

fluid ounces (fl oz) cups (cup)
31.8 fluid ounces 3.975 cups
32.8 fluid ounces 4.1 cups
33.8 fluid ounces 4.225 cups
34.8 fluid ounces 4.35 cups
35.8 fluid ounces 4.475 cups
36.8 fluid ounces 4.6 cups
37.8 fluid ounces 4.725 cups
38.8 fluid ounces 4.85 cups
39.8 fluid ounces 4.975 cups
40.8 fluid ounces 5.1 cups