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 3240 millimeters into kilometers we have to multiply 3240 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

3240 mm → L_(km)

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

L_(km) = 3240 mm × 1.0E-6 km

L_(km) = 0.00324 km

The final result is:

3240 mm → 0.00324 km

We conclude that 3240 millimeters is equivalent to 0.00324 kilometers:

3240 millimeters = 0.00324 kilometers

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 308.64197530864 × 3240 millimeters.

Another way is saying that 3240 millimeters is equal to 1 ÷ 308.64197530864 kilometers.

Approximate result

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

3240 mm ≅ 0.003 km

An alternative is also that one kilometer is approximately three hundred eight point six four two times three thousand two hundred forty 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