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 820 gallons into cups we have to multiply 820 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

820 gal → V_(cup)

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

V_(cup) = 820 gal × 16 cup

V_(cup) = 13120 cup

The final result is:

820 gal → 13120 cup

We conclude that 820 gallons is equivalent to 13120 cups:

820 gallons = 13120 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 7.6219512195122E-5 × 820 gallons.

Another way is saying that 820 gallons is equal to 1 ÷ 7.6219512195122E-5 cups.

Approximate result

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

820 gal ≅ 13120 cup

An alternative is also that one cup is approximately zero times eight hundred twenty 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