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 6840 millimeters into kilometers we have to multiply 6840 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

6840 mm → L_(km)

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

L_(km) = 6840 mm × 1.0E-6 km

L_(km) = 0.00684 km

The final result is:

6840 mm → 0.00684 km

We conclude that 6840 millimeters is equivalent to 0.00684 kilometers:

6840 millimeters = 0.00684 kilometers

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 146.19883040936 × 6840 millimeters.

Another way is saying that 6840 millimeters is equal to 1 ÷ 146.19883040936 kilometers.

Approximate result

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

6840 mm ≅ 0.007 km

An alternative is also that one kilometer is approximately one hundred forty-six point one nine nine times six thousand eight 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