Input your measurements on to effortlessly convert lengths between kilometers and nanometers and vice versa.

km to nm

Formula: Length in nanometers (nm ) = Length in kilometers (km) × 1000000000000




nm to km

Formula: Length in kilometers (km) = Length in nanometers (nm ) ÷ 1000000000000




Conversion Factors:

  • Kilometers to Nanometers: 1 kilometer = 1,000,000,000,000 nanometers
  • Nanometers to Kilometers: 1 nanometer = 1/1,000,000,000,000 kilometers

How to Convert Kilometers to Nanometers:

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


Example: Convert 2 kilometers to nanometers.

Nanometers=2×1,000,000,000,000=2,000,000,000,000 nanometers

How to Convert Nanometers to Kilometers:

To convert nanometers to kilometers, divide the number of nanometers by 1,000,000,000,000.


Example: Convert 500,000,000,000 nanometers to kilometers.

Kilometers=500,000,000,000/1,000,000,000,000=0.5 kilometers

Kilometers to Nanometers

Kilometers to Nanometers Conversion Table

Kilometers (km)Nanometers (nm)
1 km1e+12 nm
2 km2e+12 nm
3 km3e+12 nm
4 km4e+12 nm
5 km5e+12 nm
6 km6e+12 nm
7 km7e+12 nm
8 km8e+12 nm
9 km9e+12 nm
10 km1e+13 nm
20 km2e+13 nm
30 km3e+13 nm
40 km4e+13 nm
50 km5e+13 nm
60 km6e+13 nm
70 km7e+13 nm
80 km8e+13 nm
90 km9e+13 nm
100 km1e+14 nm

km to nm Conversion Chart

km to nm Conversion Chart

Nanometers to Kilometers Conversion Table

Nanometers (nm)Kilometers (km)
1 nm1e-12 km
2 nm2e-12 km
3 nm3e-12 km
4 nm4e-12 km
5 nm5e-12 km
6 nm6e-12 km
7 nm7e-12 km
8 nm8e-12 km
9 nm9e-12 km
10 nm1e-11 km
20 nm2e-11 km
30 nm3e-11 km
40 nm4e-11 km
50 nm5e-11 km
60 nm6e-11 km
70 nm7e-11 km
80 nm8e-11 km
90 nm9e-11 km
100 nm1e-10 km

nm to km Conversion Chart

nm to km Conversion Chart

Difference Between Kilometers to Nanometers

AspectKilometers (km)Nanometers (nm)
Unit TypeKilometers are a unit of length in the metric system.Nanometers are also a unit of length in the metric system.
UsageUsed to measure longer distances such as those in travel.Used to measure extremely small objects like atoms and molecules.
ScaleOne kilometer equals 1,000 meters.One nanometer equals 0.000000001 meters or 1e-9 meters.
ConversionsOne kilometer is equivalent to 1,000,000,000,000 nanometers.One nanometer is equivalent to 1e-12 kilometers.
ApplicationCommon in geography, road distances, and large-scale mapping.Common in physics, chemistry, and nanotechnology.
PrecisionLess precise for measurements where small scale is crucial.Highly precise for measuring molecular and atomic scales.
Visual RepresentationCannot be visualized at a microscopic scale.Visible only under powerful microscopes like electron microscopes.
Common ToolsMeasured with odometers, GPS, and maps.Measured with devices like scanning tunneling microscopes.

1. Solved Examples on Converting Kilometers to Nanometers

Example 1: Convert 0.5 kilometers to nanometers.

Nanometers = Kilometers × 1,000,000,000,000

0.5 km×1,000,000,000,000=500,000,000,000 nm

Result: 0.5 kilometers is equal to 500,000,000,000 nanometers.

Example 2: Convert 2 kilometers to nanometers.

2 km×1,000,000,000,000=2,000,000,000,000 nm

Result: 2 kilometers is equal to 2,000,000,000,000 nanometers.

Example 3: Convert 0.05 kilometers to nanometers.

0.05 km×1,000,000,000,000=50,000,000,000 nm

Result: 0.05 kilometers is equal to 50,000,000,000 nanometers.

Example 4: Convert 10 kilometers to nanometers.

10 km×1,000,000,000,000=10,000,000,000,000 nm

Result: 10 kilometers is equal to 10,000,000,000,000 nanometers.

Example 5: Convert 0.001 kilometers to nanometers.

0.001 km×1,000,000,000,000=1,000,000,000 nm

Result: 0.001 kilometers is equal to 1,000,000,000 nanometers.

2. Solved Examples on Converting Nanometers to Kilometers

Example 1: Convert 1,000,000,000 nanometers to kilometers.

1,000,000,000 nm×1e−12=0.001 km

Result: 1,000,000,000 nanometers is equal to 0.001 kilometers.

Example 2: Convert 5,000,000,000 nanometers to kilometers.

5,000,000,000 nm×1e−12=0.005 km

Result: 5,000,000,000 nanometers is equal to 0.005 kilometers.

Example 3: Convert 10,000,000,000 nanometers to kilometers.

10,000,000,000 nm×1e−12=0.01 km

Result: 10,000,000,000 nanometers is equal to 0.01 kilometers.

Example 4: Convert 100,000,000,000 nanometers to kilometers.

100,000,000,000 nm×1e−12=0.1 km

Result: 100,000,000,000 nanometers is equal to 0.1 kilometers.

Example 5: Convert 250,000,000,000 nanometers to kilometers.

250,000,000,000 nm×1e−12=0.25 km

Result: 250,000,000,000 nanometers is equal to 0.25 kilometers

1. How many times larger is a kilometer than a nanometer?

A kilometer is one trillion times larger than a nanometer. This vast difference highlights the scale from macroscopic geographical distances to microscopic atomic-level measurements

2. How accurate is the conversion from kilometers to nanometers?

The conversion is mathematically precise, given the defined relationship between meters, kilometers, and nanometers. However, the practical accuracy may depend on the precision of the initial measurement in kilometers.

3. How can I visualize a nanometer compared to a kilometer?

Visualizing a nanometer in comparison to a kilometer is challenging due to the vast scale difference. One analogy is comparing the size of a marble to the size of Earth, where Earth represents a kilometer, and the marble represents a nanometer.

4. Is it common to convert kilometers directly to nanometers in everyday applications?

No, this type of conversion is uncommon in everyday applications and is typically reserved for specialized scientific research and industrial applications that require extreme precision across very different scales.

5. How often do professionals use the kilometer to nanometer conversion in research?

Regularly, in fields that bridge large distances and microscopic scales, such as astrophysics and nanotechnology.

6. Can converting kilometers to nanometers be useful in everyday technology, such as GPS?

While GPS technology calculates distances in meters or kilometers, conversions to nanometers are not directly useful in GPS technology but are vital in the underlying technology of microchips and sensors that may involve nanometric scales.

7. How do digital tools assist in converting kilometers to nanometers?

Digital tools, such as online converters and scientific calculators, assist by automating the conversion process, ensuring quick and error-free calculations, which is especially useful when dealing with such large numbers.

8. How can I visualize a nanometer compared to a kilometer?

Visualizing a nanometer in comparison to a kilometer is challenging due to the vast scale difference. One analogy is comparing the size of a marble to the size of Earth, where Earth represents a kilometer, and the marble represents a nanometer.