Unit Definition (micromicron) Picometer: a metric unit of length equal to one trillionth of a meter.
Unit Definition (miglio) The miglio is the traditional Italian mile. The miglio equals 1628 yards, which is 0.925 English mile or about 1488.6 meters. This is 32 yards (29.3 meters) shorter than the classical Roman mile.
Length/Distance 
