Millimeters to km formula

A unit of length equal to 1/1000 of a meter and is equivalent to 0.03937 inch. Abbreviation: mm

How big is a millimeter?

Here are examples of things that measure around 1 mm:

• The thickness of a credit card
• A typical mechanical pencil tip measures, for example, 0.5, 0.7, or 0.9 mm
• A medium pen tip size delivers a line that’s about 1.0 mm in width for a ballpoint pen.

Here are more examples of things that measure about one millimeter (order of magnitude):

The width of the lead in a mechanical pencil
The thickness of a credit card
The length of a flea
The width of a grain of salt
The width of a staple
The diameter of the tip of a ballpoint pen
The thickness of a single strand of human hair
The height of the lettering on a penny

A kilometer (km) is a unit of length within the International System of Units (SI), which is a decimal multiple of the meter. The kilometer, a common measure of distances equals to 1000 meters, and equivalent to 3280.8 feet or 0.621 mile. Abbreviation: km

Here are more examples of things that measure about one kilometer (order of magnitude):

The length of a standard Olympic running track
The distance between two subway stations in some cities
The distance of a short car trip within a city
The distance from the base to the peak of a mountain
The distance between two landmarks in a city
The length of some organized road races
The distance of a typical cycling sprint race
The distance covered by an average person during a 10-15 minute walk.