Millimeters to Kilometers - Convert mm to km

Millimeters (mm) Conversion

The millimeter is an SI derived unit of length in the metric system. One millimeter is equal to 0.001 meters, 0.1 centimeters, and about 0.039370 inches.

Kilometers (km) Conversion

A kilometer is a metric unit of length or distance which equals exactly 1000 meters and about 0.62137119 mile, 1093.6133 yards, or 3280.8399 feet. It is an official measurement which signifies geographical distances in most of the world except for the United States (they use the mile). Even huge distances to the farthest galaxies are expressed in kilometers, not in higher multiples of the meter.