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 399 gallons into cups we have to multiply 399 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

399 gal → V_(cup)

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

V_(cup) = 399 gal × 16 cup

V_(cup) = 6384 cup

The final result is:

399 gal → 6384 cup

We conclude that 399 gallons is equivalent to 6384 cups:

399 gallons = 6384 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 0.00015664160401003 × 399 gallons.

Another way is saying that 399 gallons is equal to 1 ÷ 0.00015664160401003 cups.

Approximate result

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

399 gal ≅ 6384 cup

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