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 320.5 cups into gallons we have to multiply 320.5 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

320.5 cup → V_(gal)

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

V_(gal) = 320.5 cup × 0.0625 gal

V_(gal) = 20.03125 gal

The final result is:

320.5 cup → 20.03125 gal

We conclude that 320.5 cups is equivalent to 20.03125 gallons:

320.5 cups = 20.03125 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.049921996879875 × 320.5 cups.

Another way is saying that 320.5 cups is equal to 1 ÷ 0.049921996879875 gallons.

Approximate result

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

320.5 cup ≅ 20.031 gal

An alternative is also that one gallon is approximately zero point zero five times three hundred twenty point five 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