Kilometers to Micrometers Converter

1 kilometer (km) equals 1,000,000,000 micrometers (µm).

Quick answer

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

1 kilometer = 1,000,000,000 micrometers

How to convert kilometers to micrometers

µm = km × 1,000,000,000

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

Example: 18 km to µm

  1. Start with the value in kilometers: 18 km.
  2. Multiply by 1,000,000,000: 18 × 1,000,000,000 = 18,000,000,000.
  3. Result: 18 kilometers = 18,000,000,000 micrometers.

Going the other way, 1 micrometer = 1 × 10-9 kilometers, so to convert micrometers back to kilometers you divide by the same number. See micrometers to kilometers.

Kilometers to micrometers conversion table

Kilometers (km)Micrometers (µm)
0.25 km 250,000,000 µm
0.5 km 500,000,000 µm
0.75 km 750,000,000 µm
1 km 1,000,000,000 µm
1.5 km 1,500,000,000 µm
2 km 2,000,000,000 µm
2.5 km 2,500,000,000 µm
3 km 3,000,000,000 µm
4 km 4,000,000,000 µm
5 km 5,000,000,000 µm
6 km 6,000,000,000 µm
7 km 7,000,000,000 µm
8 km 8,000,000,000 µm
9 km 9,000,000,000 µm
10 km 10,000,000,000 µm
11 km 11,000,000,000 µm
12 km 12,000,000,000 µm
13 km 13,000,000,000 µm
14 km 14,000,000,000 µm
15 km 15,000,000,000 µm
16 km 16,000,000,000 µm
17 km 17,000,000,000 µm
18 km 18,000,000,000 µm
19 km 19,000,000,000 µm
20 km 20,000,000,000 µm
21 km 21,000,000,000 µm
22 km 22,000,000,000 µm
23 km 23,000,000,000 µm
24 km 24,000,000,000 µm
25 km 25,000,000,000 µm
26 km 26,000,000,000 µm
27 km 27,000,000,000 µm
28 km 28,000,000,000 µm
29 km 29,000,000,000 µm
30 km 30,000,000,000 µm
31 km 31,000,000,000 µm
32 km 32,000,000,000 µm
33 km 33,000,000,000 µm
34 km 34,000,000,000 µm
35 km 35,000,000,000 µm

More km to µm values

What is a kilometer?

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

More about kilometers →

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 →

Convert kilometers to other units

Convert other units to micrometers

Frequently asked questions

How many micrometers are in a kilometer?

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

How many kilometers are in a micrometer?

One micrometer is 1e-9 kilometers.

What is the formula to convert kilometers to micrometers?

µm = km × 1,000,000,000.