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 500.4 millimeters into kilometers we have to multiply 500.4 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

500.4 mm → L_(km)

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

L_(km) = 500.4 mm × 1.0E-6 km

L_(km) = 0.0005004 km

The final result is:

500.4 mm → 0.0005004 km

We conclude that 500.4 millimeters is equivalent to 0.0005004 kilometers:

500.4 millimeters = 0.0005004 kilometers

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 1998.4012789768 × 500.4 millimeters.

Another way is saying that 500.4 millimeters is equal to 1 ÷ 1998.4012789768 kilometers.

Approximate result

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

500.4 mm ≅ 0.001 km

An alternative is also that one kilometer is approximately one thousand nine hundred ninety-eight point four zero one times five hundred point four 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