Conversion formula

The conversion factor from milliliters to quarts is 0.0010566882049662, which means that 1 milliliter is equal to 0.0010566882049662 quarts:

1 ml = 0.0010566882049662 qt

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

1 ml → 0.0010566882049662 qt

640 ml → V_(qt)

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

V_(qt) = 640 ml × 0.0010566882049662 qt

V_(qt) = 0.67628045117839 qt

The final result is:

640 ml → 0.67628045117839 qt

We conclude that 640 milliliters is equivalent to 0.67628045117839 quarts:

640 milliliters = 0.67628045117839 quarts

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 quart is equal to 1.478676484375 × 640 milliliters.

Another way is saying that 640 milliliters is equal to 1 ÷ 1.478676484375 quarts.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred forty milliliters is approximately zero point six seven six quarts:

640 ml ≅ 0.676 qt

An alternative is also that one quart is approximately one point four seven nine times six hundred forty milliliters.

Conversion table

milliliters to quarts chart

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