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 109 millimeters into kilometers we have to multiply 109 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

109 mm → L_(km)

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

L_(km) = 109 mm × 1.0E-6 km

L_(km) = 0.000109 km

The final result is:

109 mm → 0.000109 km

We conclude that 109 millimeters is equivalent to 0.000109 kilometers:

109 millimeters = 0.000109 kilometers

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 9174.3119266055 × 109 millimeters.

Another way is saying that 109 millimeters is equal to 1 ÷ 9174.3119266055 kilometers.

Approximate result

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

109 mm ≅ 0 km

An alternative is also that one kilometer is approximately nine thousand one hundred seventy-four point three one two times one hundred nine 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