Convert Micrometers to Kilometers

Enter the length in micrometers below to get the value converted to kilometers.

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1 µm = 1.0E-9 km

How to Convert Micrometers to Kilometers

Tape measures can be used to measure units of length, and a calculator can be used to convert to another unit

To convert a micrometer measurement to a kilometer measurement, multiply the length by the conversion ratio. One micrometer is equal to 1.0E-9 kilometers, so use this simple formula to convert:

kilometers = micrometers × 1.0E-9

The length in kilometers is equal to the micrometers multiplied by 1.0E-9.

For example, here's how to convert 5 micrometers to kilometers using the formula above.
5 µm = (5 × 1.0E-9) = 5.0E-9 km

Micrometers and kilometers are both units used to measure length. Keep reading to learn more about each unit of measure.

Micrometers

One micrometer is equal to one-millionth (1/1,000,000) of a meter, which is defined as the distance light travels in a vacuum in a 1/299,792,458 second time interval.

The micrometer, or micrometre, is a multiple of the meter, which is the SI base unit for length. In the metric system, "micro" is the prefix for 10-6. A micrometer is sometimes also referred to as a micron. Micrometers can be abbreviated as µm, for example 1 micrometer can be written as 1 µm.

To get an idea of the actual physical length of a micrometer, one human hair is 40-50 µm thick, demonstrating how small this unit of measure is.

Kilometers

One kilometer is equal to 1,000 meters, which are defined as the distance light travels in a vacuum in a 1/299,792,458 second time interval.

The kilometer, or kilometre, is a multiple of the meter, which is the SI base unit for length. In the metric system, "kilo" is the prefix for 103. Kilometers can be abbreviated as km, for example 1 kilometer can be written as 1 km.

We recommend using a ruler or tape measure for measuring length, which can be found at a local retailer or home center. Rulers are available in imperial, metric, or combination with both values, so make sure you get the correct type for your needs.

If you need a ruler you can also download and print our free printable rulers, which include both imperial and metric measurements.

Micrometer Measurements and Equivalent Kilometer Conversions

Common micrometer values converted to the equivalent kilometer value
Micrometers Kilometers
1 µm 0.000000001 km
2 µm 0.000000002 km
3 µm 0.000000003 km
4 µm 0.000000004 km
5 µm 0.000000005 km
6 µm 0.000000006 km
7 µm 0.000000007 km
8 µm 0.000000008 km
9 µm 0.000000009 km
10 µm 0.00000001 km
11 µm 0.000000011 km
12 µm 0.000000012 km
13 µm 0.000000013 km
14 µm 0.000000014 km
15 µm 0.000000015 km
16 µm 0.000000016 km
17 µm 0.000000017 km
18 µm 0.000000018 km
19 µm 0.000000019 km
20 µm 0.00000002 km
21 µm 0.000000021 km
22 µm 0.000000022 km
23 µm 0.000000023 km
24 µm 0.000000024 km
25 µm 0.000000025 km
26 µm 0.000000026 km
27 µm 0.000000027 km
28 µm 0.000000028 km
29 µm 0.000000029 km
30 µm 0.00000003 km
31 µm 0.000000031 km
32 µm 0.000000032 km
33 µm 0.000000033 km
34 µm 0.000000034 km
35 µm 0.000000035 km
36 µm 0.000000036 km
37 µm 0.000000037 km
38 µm 0.000000038 km
39 µm 0.000000039 km
40 µm 0.00000004 km

More Micrometer Length Conversions

US Customary & Imperial Units
Convert to Miles
1 µm is equal to 6.2137E-10 miles
Convert to Yards
1 µm is equal to 1.0936E-6 yards
Convert to Feet
1 µm is equal to 3.2808E-6 feet
Convert to Inches
1 µm is equal to 3.937E-5 inches
SI Units
Convert to Meters
1 µm is equal to 1.0E-6 meters
Convert to Centimeters
1 µm is equal to 0.0001 centimeters
Convert to Millimeters
1 µm is equal to 0.001 millimeters
Convert to Nanometers
1 µm is equal to 1,000 nanometers