Conversion formula

The conversion factor from milliliters to liters is 0.001, which means that 1 milliliter is equal to 0.001 liters:

1 ml = 0.001 L

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

1 ml → 0.001 L

640 ml → V_(L)

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

V_(L) = 640 ml × 0.001 L

V_(L) = 0.64 L

The final result is:

640 ml → 0.64 L

We conclude that 640 milliliters is equivalent to 0.64 liters:

640 milliliters = 0.64 liters

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 liter is equal to 1.5625 × 640 milliliters.

Another way is saying that 640 milliliters is equal to 1 ÷ 1.5625 liters.

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 four liters:

640 ml ≅ 0.64 L

An alternative is also that one liter is approximately one point five six three times six hundred forty milliliters.

Conversion table

milliliters to liters chart

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