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 1338 gallons into cups we have to multiply 1338 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

1338 gal → V_(cup)

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

V_(cup) = 1338 gal × 16 cup

V_(cup) = 21408 cup

The final result is:

1338 gal → 21408 cup

We conclude that 1338 gallons is equivalent to 21408 cups:

1338 gallons = 21408 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 4.6711509715994E-5 × 1338 gallons.

Another way is saying that 1338 gallons is equal to 1 ÷ 4.6711509715994E-5 cups.

Approximate result

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

1338 gal ≅ 21408 cup

An alternative is also that one cup is approximately zero times one thousand three hundred thirty-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