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Gigameters (Gm) - Length / Distance Conversions

A gigameter is a unit of Length or Distance in the Metric System. The symbol for gigameter is Gm and the International spelling for this unit is gigametre.

The base unit for a gigameter is meter and the prefix is giga. The prefix giga is derived from the Greek γίγας meaning giant and is symbolized as G. Giga denotes a factor of a billion (109) which means that there are 1,000,000,000 meters in a gigameter.

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