Conversion formula

The conversion factor from cups to gallons is 0.0625, which means that 1 cup is equal to 0.0625 gallons:

1 cup = 0.0625 gal

To convert 331 cups into gallons we have to multiply 331 by the conversion factor in order to get the volume amount from cups to gallons. We can also form a simple proportion to calculate the result:

1 cup → 0.0625 gal

331 cup → V_(gal)

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

V_(gal) = 331 cup × 0.0625 gal

V_(gal) = 20.6875 gal

The final result is:

331 cup → 20.6875 gal

We conclude that 331 cups is equivalent to 20.6875 gallons:

331 cups = 20.6875 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.04833836858006 × 331 cups.

Another way is saying that 331 cups is equal to 1 ÷ 0.04833836858006 gallons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that three hundred thirty-one cups is approximately twenty point six eight eight gallons:

331 cup ≅ 20.688 gal

An alternative is also that one gallon is approximately zero point zero four eight times three hundred thirty-one cups.

Conversion table

cups to gallons chart

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