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 1680 millimeters into kilometers we have to multiply 1680 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

1680 mm → L_(km)

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

L_(km) = 1680 mm × 1.0E-6 km

L_(km) = 0.00168 km

The final result is:

1680 mm → 0.00168 km

We conclude that 1680 millimeters is equivalent to 0.00168 kilometers:

1680 millimeters = 0.00168 kilometers

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 595.2380952381 × 1680 millimeters.

Another way is saying that 1680 millimeters is equal to 1 ÷ 595.2380952381 kilometers.

Approximate result

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

1680 mm ≅ 0.002 km

An alternative is also that one kilometer is approximately five hundred ninety-five point two three eight times one thousand six hundred eighty 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