Convert km to nanometers
Kilometers to nanometers. Enter a value to convert, or use the km to nanometers chart further down the page.
1 kilometer equals 1,000,000,000,000 nanometers. Going the other way, 1 nanometer = 1e-12 kilometers.
How to convert km to nanometers
To convert kilometers to nanometers, multiply the kilometer value by 1000000000000. You can also divide by 1e-12 to get the same answer.
nm = km × 1000000000000
Worked example
Convert 15 km to nanometers:
15 km = 15,000,000,000,000 nm
km to nanometers conversion chart
Use this km to nanometers table for quick reference without typing anything.
| kilometers (km) | nanometers (nm) |
|---|---|
| 0.01 km | 10,000,000,000 nm |
| 0.1 km | 100,000,000,000 nm |
| 1 km | 1,000,000,000,000 nm |
| 2 km | 2,000,000,000,000 nm |
| 3 km | 3,000,000,000,000 nm |
| 5 km | 5,000,000,000,000 nm |
| 10 km | 10,000,000,000,000 nm |
| 20 km | 20,000,000,000,000 nm |
| 50 km | 50,000,000,000,000 nm |
| 100 km | 100,000,000,000,000 nm |
| 1,000 km | 1e15 nm |
What is a kilometer?
The kilometer is one thousand meters and is the standard unit for road distances and long-range measurement almost everywhere outside the United States and the United Kingdom.
What is a nanometer?
The nanometer is one billionth of a meter. Visible light spans roughly 380 to 750 nanometers, and modern chip process nodes are named after this scale.
Frequently asked questions
How many nanometers are in a kilometer?
1 km equals 1,000,000,000,000 nanometers. Going the other way, 1 nanometers is 1e-12 km.
How do you convert km to nanometers?
To convert kilometers to nanometers, multiply the kilometer value by 1000000000000. You can also divide by 1e-12 to get the same answer.
What is 10 km in nanometers?
10 km equals 10,000,000,000,000 nanometers. The conversion chart on this page lists the other values people look up most often.
Related length conversions
Convert km to other units
- nanometers to km
- km to mm
- km to cm
- km to meters
- km to inches
- km to feet
- km to yards
- km to miles
- km to micrometers
Convert other units to nanometers
- mm to nanometers
- cm to nanometers
- meters to nanometers
- inches to nanometers
- feet to nanometers
- yards to nanometers
- miles to nanometers
- micrometers to nanometers
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