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 1089 gallons into cups we have to multiply 1089 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

1089 gal → V_(cup)

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

V_(cup) = 1089 gal × 16 cup

V_(cup) = 17424 cup

The final result is:

1089 gal → 17424 cup

We conclude that 1089 gallons is equivalent to 17424 cups:

1089 gallons = 17424 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 5.7392102846648E-5 × 1089 gallons.

Another way is saying that 1089 gallons is equal to 1 ÷ 5.7392102846648E-5 cups.

Approximate result

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

1089 gal ≅ 17424 cup

An alternative is also that one cup is approximately zero times one thousand eighty-nine 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