Convert gigameter to kilometer
Please provide values below to convert gigameter [Gm] to kilometer [km], or Convert kilometer to gigameter.
How to Convert Gigameter to Kilometer
1 Gm = 1000000 km
Example: convert 15 Gm to km:
15 Gm = 15 × 1000000 km = 15000000 km
Gigameter to Kilometer Conversion Table
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Gigameter
A gigameter is a unit of length in the metric system equal to 10^9 meters.
History/Origin
The prefix "giga-" for 10^9 was adopted by the CGPM (General Conference on Weights and Measures) in 1960.
Current Use
The gigameter is used for measuring interplanetary distances, for example, the distance between Earth and Mars.
Kilometer
A kilometer is a unit of length in the metric system, equal to one thousand meters.
History/Origin
The term "kilometer" is derived from the Greek words "khilioi" (thousand) and "metron" (measure). The kilometer was first defined as part of the metric system in France in 1795.
Current Use
The kilometer is the most widely used unit of distance for road signs and travel distances in the world, with the notable exceptions of the United States and the United Kingdom.