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 51 gallons into cups we have to multiply 51 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

51 gal → V_(cup)

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

V_(cup) = 51 gal × 16 cup

V_(cup) = 816 cup

The final result is:

51 gal → 816 cup

We conclude that 51 gallons is equivalent to 816 cups:

51 gallons = 816 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 0.0012254901960784 × 51 gallons.

Another way is saying that 51 gallons is equal to 1 ÷ 0.0012254901960784 cups.

Approximate result

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

51 gal ≅ 816 cup

An alternative is also that one cup is approximately zero point zero zero one times fifty-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