Convert gigameter to zettameter
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 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.