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 90 gallons into cups we have to multiply 90 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

90 gal → V_(cup)

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

V_(cup) = 90 gal × 16 cup

V_(cup) = 1440 cup

The final result is:

90 gal → 1440 cup

We conclude that 90 gallons is equivalent to 1440 cups:

90 gallons = 1440 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 0.00069444444444444 × 90 gallons.

Another way is saying that 90 gallons is equal to 1 ÷ 0.00069444444444444 cups.

Approximate result

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

90 gal ≅ 1440 cup

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