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 138 gallons into cups we have to multiply 138 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

138 gal → V_(cup)

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

V_(cup) = 138 gal × 16 cup

V_(cup) = 2208 cup

The final result is:

138 gal → 2208 cup

We conclude that 138 gallons is equivalent to 2208 cups:

138 gallons = 2208 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 0.00045289855072464 × 138 gallons.

Another way is saying that 138 gallons is equal to 1 ÷ 0.00045289855072464 cups.

Approximate result

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

138 gal ≅ 2208 cup

An alternative is also that one cup is approximately zero times one 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