Table Of Contents
Kilometers to nanometers Conversion
1 kilometers (km) is equal to 1000000000000 nanometers (nm).
1 km = 1000000000000 nm
or
1 nm = 0.000000000001 km
Formula
To convert a length from kilometers (km) to nanometers (nm), multiply the length in kilometers by 1000000000000
l(nm) = l(km) × 1000000000000
Examples:
Convert 15 kilometers to nanometers:
l(nm) = 15km × 1000000000000 = 15000000000000 nm
Conversion table
| Kilometers (km) | Nanometers (nm) |
|---|---|
| 1 km | 1e12 nm |
| 2 km | 2e12 nm |
| 3 km | 3e12 nm |
| 5 km | 5e12 nm |
| 10 km | 1e13 nm |
| 15 km | 1.5e13 nm |
| 20 km | 2e13 nm |
| 21 km | 2.1e13 nm |
| 25 km | 2.5e13 nm |
| 42 km | 4.2e13 nm |
| 50 km | 5e13 nm |
| 100 km | 1e14 nm |
| 250 km | 2.5e14 nm |
| 500 km | 5e14 nm |
| 1000 km | 1e15 nm |
| Nanometers (nm) | Kilometers (km) |
|---|---|
| 1 nm | 1e-12 km |
| 2 nm | 2e-12 km |
| 3 nm | 3e-12 km |
| 5 nm | 5e-12 km |
| 10 nm | 1e-11 km |
| 15 nm | 1.5e-11 km |
| 20 nm | 2e-11 km |
| 21 nm | 2.1e-11 km |
| 25 nm | 2.5e-11 km |
| 42 nm | 4.2e-11 km |
| 50 nm | 5e-11 km |
| 100 nm | 1e-10 km |
| 250 nm | 2.5e-10 km |
| 500 nm | 5e-10 km |
| 1000 nm | 1e-9 km |
Frequently asked questions
How do I convert kilometers to nanometers?
Multiply the value in kilometers by 1000000000000 to get the result in nanometers. For example, 5 km × 1000000000000 = 5e12 nm.
How many nanometers are in 1 kilometers?
1 kilometers (km) is equal to 1e12 nanometers (nm).
How do I convert nanometers back to kilometers?
Use the inverse operation: divide the value in nanometers by 1000000000000 to get the result in kilometers.
How accurate is the kilometers to nanometers conversion?
The converter multiplies by the conversion factor 1000000000000 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.
Sources
Conversion factors are based on internationally recognised standards:
