Nanometer (nm)
Definition: A nanometer (nm) is one-billionth of a meter. It is commonly used in nanotechnology, semiconductor design, and physics to measure atomic-scale structures and wavelengths of light.
History: The nanometer gained importance in the 20th century as scientists developed electron microscopes and advanced microfabrication techniques. It became critical for measuring molecules and tiny electronic components.
Current Use: Nanometers are used in physics, materials science, and chip manufacturing. They help define the scale of microprocessors, DNA strands, and wavelengths in ultraviolet and X-ray light applications.
Kilometer (km)
Definition: A kilometer (km) is equal to 1,000 meters. It is a common unit for measuring large distances, especially in geography and transportation, providing a practical scale for road signs and geographic mapping.
History: Introduced in the metric system during the late 18th century, the kilometer was established to replace inconsistent units of distance measurement across different regions, bringing standardization to the scientific community.
Current Use: Kilometers are widely used in most countries for measuring road distances, running races (e.g., 5K and 10K races), and geographical measurements. It remains the primary unit for long distances in metric countries.
Quick Conversion Table Nanometer (nm) to Kilometer (km)
1 Nanometer (nm) equal to 1.0e-12 Kilometer (km)
5 Nanometer (nm) equal to 5.0e-12 Kilometer (km)
10 Nanometer (nm) equal to 1.0e-11 Kilometer (km)
20 Nanometer (nm) equal to 2.0e-11 Kilometer (km)
30 Nanometer (nm) equal to 3.0e-11 Kilometer (km)
50 Nanometer (nm) equal to 5.0e-11 Kilometer (km)
75 Nanometer (nm) equal to 7.50e-11 Kilometer (km)
100 Nanometer (nm) equal to 1.0e-10 Kilometer (km)