Conversion formula

The conversion factor from gallons to cups is 16, which means that 1 gallon is equal to 16 cups:

1 gal = 16 cup

To convert 28 gallons into cups we have to multiply 28 by the conversion factor in order to get the volume amount from gallons to cups. We can also form a simple proportion to calculate the result:

1 gal → 16 cup

28 gal → V_(cup)

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

V_(cup) = 28 gal × 16 cup

V_(cup) = 448 cup

The final result is:

28 gal → 448 cup

We conclude that 28 gallons is equivalent to 448 cups:

28 gallons = 448 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 0.0022321428571429 × 28 gallons.

Another way is saying that 28 gallons is equal to 1 ÷ 0.0022321428571429 cups.

Approximate result

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

28 gal ≅ 448 cup

An alternative is also that one cup is approximately zero point zero zero two times twenty-eight gallons.

Conversion table

gallons to cups chart

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