Convert kilometers to nanometers
1 km = 1000000000000 nm — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
1 000 000 000 000nm
Exact decimal: 1000000000000
1 km = 1000000000000 nm
How to convert kilometers to nanometers
Multiply the number of kilometers by 1000000000000 to get nanometers.
The exact factor is 1000000000000 .
Kilometer to Nanometer conversion table
| Kilometers (km) | Nanometers (nm) |
|---|---|
| 1 km | 1 000 000 000 000 |
| 2 km | 2 000 000 000 000 |
| 3 km | 3 000 000 000 000 |
| 5 km | 5 000 000 000 000 |
| 10 km | 10 000 000 000 000 |
| 20 km | 20 000 000 000 000 |
| 25 km | 25 000 000 000 000 |
| 50 km | 50 000 000 000 000 |
| 100 km | 100 000 000 000 000 |
| 250 km | 250 000 000 000 000 |
| 500 km | 500 000 000 000 000 |
| 1000 km | 1 000 000 000 000 000 |
Nanometer to Kilometer conversion table
| Nanometers (nm) | Kilometers (km) |
|---|---|
| 1 nm | 1e-12 |
| 2 nm | 2e-12 |
| 3 nm | 3e-12 |
| 5 nm | 5e-12 |
| 10 nm | 1e-11 |
| 20 nm | 2e-11 |
| 25 nm | 2.5e-11 |
| 50 nm | 5e-11 |
| 100 nm | 1e-10 |
| 250 nm | 2.5e-10 |
| 500 nm | 5e-10 |
| 1000 nm | 1e-9 |
Frequently asked
How many nanometers are in a kilometer?
One kilometer equals 1000000000000 nanometers (km → nm). That figure is exact, not rounded.
How do you convert kilometers to nanometers?
Multiply the number of kilometers by 1000000000000 to get nanometers.
What is 1 nm in kilometers?
One nanometer is 1e-12 kilometers.
What is 10 km in nm?
10 km = 10 000 000 000 000 nm.