Toolman

Convert Kilometers to Millimeters

1 kilometer = 1,000,000 millimeters. Type any value below to convert in either direction — the calculation happens in your browser.

Kilometers to Millimeters formula

Multiply the number of kilometers by 1000000 to get millimeters.

millimeters = kilometers × 1000000

To go the other way: divide the number of millimeters by 1000000, or multiply by 0.000001.

kilometers = millimeters ÷ 1000000

Kilometers to Millimeters conversion table

KilometersMillimeters
1 km1,000,000 mm
2 km2,000,000 mm
3 km3,000,000 mm
4 km4,000,000 mm
5 km5,000,000 mm
6 km6,000,000 mm
7 km7,000,000 mm
8 km8,000,000 mm
9 km9,000,000 mm
10 km10,000,000 mm
15 km15,000,000 mm
20 km20,000,000 mm
25 km25,000,000 mm
30 km30,000,000 mm
40 km40,000,000 mm
50 km50,000,000 mm
75 km75,000,000 mm
100 km100,000,000 mm
250 km250,000,000 mm
500 km500,000,000 mm
1,000 km1,000,000,000 mm

Millimeters to Kilometers conversion table

MillimetersKilometers
1 mm0.000001 km
2 mm0.000002 km
3 mm0.000003 km
4 mm0.000004 km
5 mm0.000005 km
6 mm0.000006 km
7 mm0.000007 km
8 mm0.000008 km
9 mm0.000009 km
10 mm0.00001 km

About the kilometer

A kilometre is 1,000 metres and is the standard unit for road distances in most of the world.

About the millimeter

A millimetre is one thousandth of a metre and is the default unit on engineering drawings and rulers.

Frequently asked questions

How many millimeters are in a kilometer?

There are 1,000,000 millimeters in one kilometer.

How many kilometers are in a millimeter?

There are 0.000001 kilometers in one millimeter.

Is this conversion exact?

The ratio between the kilometer and the millimeter is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.

What is 10 kilometers in millimeters?

10 kilometers equals 10,000,000 millimeters.

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