Convert light hour to zettameter
Selected category: length.
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.
Definition and details for zettameter:
Zettameter (Zm) is a metric unit of distance equal to 1021meters. This is a little more than the diameter of our galaxy in which we live.