Convert zettameter to mile (ancient Roman)
Selected category: length.
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.
Definition and details for mile (ancient Roman):
A mile was the distance a Roman legion could march in 1000 paces or 2000 steps. Pace is the distance between successive falls of the same foot. Measured distance between surviving milestones of Roman roads is often closer to 1520 meters.