Micrometres to kilometres converter
Kilometres (km)
1 micrometre = 1e-9 kilometres
How to convert micrometres to kilometres
km = µm × 1 × 10^-9
Multiply the number of micrometres by 1 × 10^-9 to get kilometres. Going the other way, divide by 1 × 10^-9 (or multiply by 1000000000).
One micrometre is exactly defined as 1 × 10^-9 kilometres (to 12 significant figures), and one kilometre is 1000000000 micrometres.
Worked examples
- Convert 5 micrometres: 5 × 1 × 10^-9 = 5e-9 5e-9 kilometres.
- Convert 12.5 micrometres: 12.5 × 1 × 10^-9 = 1.25e-8 1.25e-8 kilometres.
- Convert 250 micrometres: 250 × 1 × 10^-9 = 2.5e-7 2.5e-7 kilometres.
Quick-reference table
| µm | km |
|---|---|
| 1 | 1e-9 |
| 2 | 2e-9 |
| 3 | 3e-9 |
| 5 | 5e-9 |
| 10 | 1e-8 |
| 15 | 1.5e-8 |
| 20 | 2e-8 |
| 25 | 2.5e-8 |
| 50 | 5e-8 |
| 75 | 7.5e-8 |
| 100 | 1e-7 |
| 1,000 | 0.000001 |
| km | µm |
|---|---|
| 1 | 1,000,000,000 |
| 2 | 2,000,000,000 |
| 3 | 3,000,000,000 |
| 5 | 5,000,000,000 |
| 10 | 10,000,000,000 |
| 15 | 15,000,000,000 |
| 20 | 20,000,000,000 |
| 25 | 25,000,000,000 |
| 50 | 50,000,000,000 |
| 75 | 75,000,000,000 |
| 100 | 100,000,000,000 |
| 1,000 | 1,000,000,000,000 |
Related conversions
Frequently asked questions
How many kilometres are in 1 micrometre?
1 micrometre equals 1e-9 kilometres.
What is the formula to convert micrometres to kilometres?
Use km = µm × 1 × 10^-9. Multiply the number of micrometres by 1 × 10^-9 to get kilometres. Going the other way, divide by 1 × 10^-9 (or multiply by 1000000000).
What is 100 micrometres in kilometres?
100 micrometres is 1e-7 kilometres.