Gigameter (Gm)
Definition: A gigameter (Gm) is a unit of length equal to one billion meters (10^9 meters). It is used to describe large-scale distances, typically in astronomy and astrophysics.
History: The gigameter is part of the International System of Units and was introduced to handle extremely large measurements that are common in space science and the study of galaxies.
Current Use: Gigameters are used primarily in astronomy for measuring distances between large-scale celestial objects, such as stars, galaxies, and intergalactic spaces. It helps scientists express the vast scale of the universe.
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 Gigameter (Gm) to Kilometer (km)
1 Gigameter (Gm) equal to 1,000,000 Kilometer (km)
5 Gigameter (Gm) equal to 5,000,000 Kilometer (km)
10 Gigameter (Gm) equal to 10,000,000 Kilometer (km)
20 Gigameter (Gm) equal to 20,000,000 Kilometer (km)
30 Gigameter (Gm) equal to 30,000,000 Kilometer (km)
50 Gigameter (Gm) equal to 50,000,000 Kilometer (km)
75 Gigameter (Gm) equal to 75,000,000 Kilometer (km)
100 Gigameter (Gm) equal to 100,000,000 Kilometer (km)