Conversion formula

The conversion factor from quarts to cups is 4, which means that 1 quart is equal to 4 cups:

1 qt = 4 cup

To convert 640 quarts into cups we have to multiply 640 by the conversion factor in order to get the volume amount from quarts to cups. We can also form a simple proportion to calculate the result:

1 qt → 4 cup

640 qt → V_(cup)

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

V_(cup) = 640 qt × 4 cup

V_(cup) = 2560 cup

The final result is:

640 qt → 2560 cup

We conclude that 640 quarts is equivalent to 2560 cups:

640 quarts = 2560 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 0.000390625 × 640 quarts.

Another way is saying that 640 quarts is equal to 1 ÷ 0.000390625 cups.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred forty quarts is approximately two thousand five hundred sixty cups:

640 qt ≅ 2560 cup

An alternative is also that one cup is approximately zero times six hundred forty quarts.

Conversion table

quarts to cups chart

For quick reference purposes, below is the conversion table you can use to convert from quarts to cups