To convert a kilometer measurement come a millimeter measurement, main point the length by the counter ratio.

since one kilometer is same to 1,000,000 millimeters, you deserve to use this straightforward formula come convert:

How countless Millimeters space in a Kilometer?

There space 1,000,000 millimeters in a kilometer, i beg your pardon is why we use this worth in the formula above.

1 kilometres = 1,000,000 mm

our inch portion calculator can include kilometers and also millimeters together, and it likewise automatically converts the outcomes to us customary, imperial, and also SI metric values.

Kilometers and also millimeters room both units offered to measure up length. Keep analysis to learn more about each unit of measure.

You are watching: How many millimeters are there in a kilometer


One kilometre is equal to 1,000 meters, i m sorry are identified as the distance light travel in a vacuum in a 1/299,792,458 second time interval.<1>

The kilometer, or kilometre, is a multiple of the meter, i beg your pardon is the SI basic unit because that length. In the metric system, "kilo" is the prefix for 103. Kilometers deserve to be abbreviated together km; because that example, 1 kilometer deserve to be written as 1 km.


One millimeter is equal to one-thousandth (1/1,000) the a meter, i beg your pardon is characterized as the street light travel in a vacuum in a 1/299,792,458 2nd time interval.

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The millimeter, or millimetre, is a multiple of the meter, which is the SI basic unit because that length. In the metric system, "milli" is the prefix because that 10-3. Millimeters deserve to be abbreviated as mm; because that example, 1 millimeter have the right to be created as 1 mm.

millimeter are regularly represented through the the smallest ticks on many metric rulers. To obtain a reference suggest of the size, the thickness that a us dime is 1.35mm.<2>

us recommend using a ruler or tape measure up for measuring length, which can be discovered at a regional retailer or house center. Rulers are obtainable in imperial, metric, or mix with both values, therefore make sure you gain the correct type for her needs.

require a ruler? shot our free downloadable and also printable rulers, which include both imperial and also metric measurements.

Kilometer to Millimeter switch Table

Kilometer measurements converted to millimeter Kilometers millimeter
0.000001 km 1 mm
0.000002 km 2 mm
0.000003 km 3 mm
0.000004 km 4 mm
0.000005 km 5 mm
0.000006 km 6 mm
0.000007 km 7 mm
0.000008 km 8 mm
0.000009 km 9 mm
0.0000001 km 0.1 mm
0.000001 km 1 mm
0.00001 km 10 mm
0.0001 km 100 mm
0.001 km 1,000 mm
0.01 km 10,000 mm
0.1 km 100,000 mm
1 km 1,000,000 mm


Ambler Thompson and Barry N. Taylor, overview for the usage of the global System of devices (SI), National academy of Standards and also Technology, claims Mint, Coin Specifications,

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