To convert from miles into these units, multiply by 1.6
... 500 Dividing by 1000 
converts m to km, giving 0.5 Because 1 mi is about 1.6 km, this speed 
corresponds... [DOC] [TLE] Chemistry: The Central Science, Chapter 1, Section 6 [PAR] 1.6 Dimensional Analysis ... Units are multiplied together, divided into each other, 
or "canceled.