Kilometers to Micrometers

Convert kilometers (km) to micrometers (µm). Type in either box; the other updates as you go.

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1 km = 1,000,000,000 µm

1 kilometer equals1,000,000,000 µm
1 micrometer equals1 × 10⁻⁹ km
Formulaµm = km × 1,000,000,000

How to convert kilometers to micrometers

To convert kilometers to micrometers, multiply the number of kilometers by 1,000,000,000.

µm = km × 1,000,000,000

Example

Convert 5 kilometers to micrometers:

5 km × 1,000,000,000 = 5,000,000,000 µm

Kilometer to micrometer conversion chart

Kilometers to micrometers
Kilometers (km)Micrometers (µm)
1 km1,000,000,000 µm
2 km2,000,000,000 µm
3 km3,000,000,000 µm
4 km4,000,000,000 µm
5 km5,000,000,000 µm
6 km6,000,000,000 µm
7 km7,000,000,000 µm
8 km8,000,000,000 µm
9 km9,000,000,000 µm
10 km10,000,000,000 µm
12 km12,000,000,000 µm
15 km15,000,000,000 µm
20 km20,000,000,000 µm
25 km25,000,000,000 µm
30 km30,000,000,000 µm
40 km40,000,000,000 µm
50 km50,000,000,000 µm
60 km60,000,000,000 µm
70 km70,000,000,000 µm
75 km75,000,000,000 µm
80 km80,000,000,000 µm
90 km90,000,000,000 µm
100 km100,000,000,000 µm
150 km150,000,000,000 µm
200 km200,000,000,000 µm
250 km250,000,000,000 µm
500 km500,000,000,000 µm
1,000 km1,000,000,000,000 µm

Going the other way? See the micrometers to kilometers chart.

About the units

Kilometer (km)

A kilometer is 1,000 meters. Road distances and running races outside the US and UK are measured in kilometers.

Micrometer (µm)

A micrometer (micron) is one millionth of a meter. Bacteria, fibers and manufacturing tolerances are measured in micrometers.

Frequently asked questions

How many micrometers are in a kilometer?

There are 1,000,000,000 micrometers in a kilometer.

How many kilometers are in a micrometer?

There are 1 × 10⁻⁹ kilometers in a micrometer.

How do you convert kilometers to micrometers?

To convert kilometers to micrometers, multiply the number of kilometers by 1,000,000,000.

What is 5 kilometers in micrometers?

5 kilometers equals 5,000,000,000 micrometers.

Convert between metric and imperial units of length and distance, from millimeters to miles. Open the length converter to see a value in every unit at once.