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 991 gallons into cups we have to multiply 991 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

991 gal → V_(cup)

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

V_(cup) = 991 gal × 16 cup

V_(cup) = 15856 cup

The final result is:

991 gal → 15856 cup

We conclude that 991 gallons is equivalent to 15856 cups:

991 gallons = 15856 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 6.3067608476287E-5 × 991 gallons.

Another way is saying that 991 gallons is equal to 1 ÷ 6.3067608476287E-5 cups.

Approximate result

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

991 gal ≅ 15856 cup

An alternative is also that one cup is approximately zero times nine hundred ninety-one 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