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 1280 gallons into cups we have to multiply 1280 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

1280 gal → V_(cup)

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

V_(cup) = 1280 gal × 16 cup

V_(cup) = 20480 cup

The final result is:

1280 gal → 20480 cup

We conclude that 1280 gallons is equivalent to 20480 cups:

1280 gallons = 20480 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 4.8828125E-5 × 1280 gallons.

Another way is saying that 1280 gallons is equal to 1 ÷ 4.8828125E-5 cups.

Approximate result

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

1280 gal ≅ 20480 cup

An alternative is also that one cup is approximately zero times one thousand two hundred eighty 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