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 6400 cups into gallons we have to multiply 6400 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

6400 cup → V_(gal)

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

V_(gal) = 6400 cup × 0.0625 gal

V_(gal) = 400 gal

The final result is:

6400 cup → 400 gal

We conclude that 6400 cups is equivalent to 400 gallons:

6400 cups = 400 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.0025 × 6400 cups.

Another way is saying that 6400 cups is equal to 1 ÷ 0.0025 gallons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six thousand four hundred cups is approximately four hundred gallons:

6400 cup ≅ 400 gal

An alternative is also that one gallon is approximately zero point zero zero three times six thousand four hundred 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