Conversion formula

The conversion factor from pints to quarts is 0.5, which means that 1 pint is equal to 0.5 quarts:

1 pt = 0.5 qt

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

1 pt → 0.5 qt

640 pt → V_(qt)

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

V_(qt) = 640 pt × 0.5 qt

V_(qt) = 320 qt

The final result is:

640 pt → 320 qt

We conclude that 640 pints is equivalent to 320 quarts:

640 pints = 320 quarts

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 quart is equal to 0.003125 × 640 pints.

Another way is saying that 640 pints is equal to 1 ÷ 0.003125 quarts.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred forty pints is approximately three hundred twenty quarts:

640 pt ≅ 320 qt

An alternative is also that one quart is approximately zero point zero zero three times six hundred forty pints.

Conversion table

pints to quarts chart

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