Conversion formula

The conversion factor from millimeters to kilometers is 1.0E-6, which means that 1 millimeter is equal to 1.0E-6 kilometers:

1 mm = 1.0E-6 km

To convert 220 millimeters into kilometers we have to multiply 220 by the conversion factor in order to get the length amount from millimeters to kilometers. We can also form a simple proportion to calculate the result:

1 mm → 1.0E-6 km

220 mm → L_(km)

Solve the above proportion to obtain the length L in kilometers:

L_(km) = 220 mm × 1.0E-6 km

L_(km) = 0.00022 km

The final result is:

220 mm → 0.00022 km

We conclude that 220 millimeters is equivalent to 0.00022 kilometers:

220 millimeters = 0.00022 kilometers

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 4545.4545454545 × 220 millimeters.

Another way is saying that 220 millimeters is equal to 1 ÷ 4545.4545454545 kilometers.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that two hundred twenty millimeters is approximately zero kilometers:

220 mm ≅ 0 km

An alternative is also that one kilometer is approximately four thousand five hundred forty-five point four five five times two hundred twenty millimeters.

Conversion table

millimeters to kilometers chart

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