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 642 gallons into cups we have to multiply 642 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

642 gal → V_(cup)

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

V_(cup) = 642 gal × 16 cup

V_(cup) = 10272 cup

The final result is:

642 gal → 10272 cup

We conclude that 642 gallons is equivalent to 10272 cups:

642 gallons = 10272 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 9.7352024922118E-5 × 642 gallons.

Another way is saying that 642 gallons is equal to 1 ÷ 9.7352024922118E-5 cups.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred forty-two gallons is approximately ten thousand two hundred seventy-two cups:

642 gal ≅ 10272 cup

An alternative is also that one cup is approximately zero times six hundred forty-two 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