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 3990 gallons into cups we have to multiply 3990 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

3990 gal → V_(cup)

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

V_(cup) = 3990 gal × 16 cup

V_(cup) = 63840 cup

The final result is:

3990 gal → 63840 cup

We conclude that 3990 gallons is equivalent to 63840 cups:

3990 gallons = 63840 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 1.5664160401003E-5 × 3990 gallons.

Another way is saying that 3990 gallons is equal to 1 ÷ 1.5664160401003E-5 cups.

Approximate result

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

3990 gal ≅ 63840 cup

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