Convert gigameter to light hour
Selected category: length.
Definition and details for gigameter:
Gigameter (Gm) is a metric unit of distance equal to one million kilometers (or 109m). This unit would be a good yardstick for the inner Solar System.
Definition and details for light hour:
Light hour is defined as the distance the light travels in one hour through a vacuum. The defined light speed is c = 299,792,458 m/sec. So one light hour equals exactly 1,079,252,848,800 meters.