Micrometers to Kilometers Converter

1 micrometer (µm) equals 1 × 10-9 kilometers (km).

Quick answer

  • 1 micrometer = 1 × 10-9 kilometers
  • 1 kilometer = 1,000,000,000 micrometers
  • Formula: km = µm × 1 × 10-9

1 micrometer = 1 × 10-9 kilometers

How to convert micrometers to kilometers

km = µm × 1 × 10-9

To convert micrometers to kilometers, multiply the number of micrometers by 1 × 10-9.

Example: 18 µm to km

  1. Start with the value in micrometers: 18 µm.
  2. Multiply by 1 × 10-9: 18 × 1 × 10-9 = 1.8 × 10-8.
  3. Result: 18 micrometers = 1.8 × 10-8 kilometers.

Going the other way, 1 kilometer = 1,000,000,000 micrometers, so to convert kilometers back to micrometers you divide by the same number. See kilometers to micrometers.

Micrometers to kilometers conversion table

Micrometers (µm)Kilometers (km)
0.25 µm 2.5 × 10-10 km
0.5 µm 5 × 10-10 km
0.75 µm 7.5 × 10-10 km
1 µm 1 × 10-9 km
1.5 µm 1.5 × 10-9 km
2 µm 2 × 10-9 km
2.5 µm 2.5 × 10-9 km
3 µm 3 × 10-9 km
4 µm 4 × 10-9 km
5 µm 5 × 10-9 km
6 µm 6 × 10-9 km
7 µm 7 × 10-9 km
8 µm 8 × 10-9 km
9 µm 9 × 10-9 km
10 µm 1 × 10-8 km
11 µm 1.1 × 10-8 km
12 µm 1.2 × 10-8 km
13 µm 1.3 × 10-8 km
14 µm 1.4 × 10-8 km
15 µm 1.5 × 10-8 km
16 µm 1.6 × 10-8 km
17 µm 1.7 × 10-8 km
18 µm 1.8 × 10-8 km
19 µm 1.9 × 10-8 km
20 µm 2 × 10-8 km
21 µm 2.1 × 10-8 km
22 µm 2.2 × 10-8 km
23 µm 2.3 × 10-8 km
24 µm 2.4 × 10-8 km
25 µm 2.5 × 10-8 km
26 µm 2.6 × 10-8 km
27 µm 2.7 × 10-8 km
28 µm 2.8 × 10-8 km
29 µm 2.9 × 10-8 km
30 µm 3 × 10-8 km
31 µm 3.1 × 10-8 km
32 µm 3.2 × 10-8 km
33 µm 3.3 × 10-8 km
34 µm 3.4 × 10-8 km
35 µm 3.5 × 10-8 km

More µm to km values

What is a micrometer?

The micrometer (also micrometre, and commonly called the micron) is a metric unit of length equal to one millionth of a meter, or one thousandth of a millimeter.

More about micrometers →

What is a kilometer?

The kilometer (also spelled kilometre) is a metric unit of length equal to 1,000 meters.

More about kilometers →

Convert micrometers to other units

Convert other units to kilometers

Frequently asked questions

How many kilometers are in a micrometer?

One micrometer is 1e-9 kilometers.

How many micrometers are in a kilometer?

One kilometer is 1,000,000,000 micrometers.

What is the formula to convert micrometers to kilometers?

km = µm × 1 × 10^-9.