| Definition: | ratio of two units of measurement for quantities of the same kind
NOTE 1 – An example of conversion factor is km/m = 1 000 and thus 1 km = 1 000 m
NOTE 2 – The units may belong to different system of units. Examples are:
• h/s = 3 600 and thus 1 h = 3 600 s;
• (km/h)/(m/s) = (km/m)/(h/s) = (1 000/3 600) = (1/3,6), and thus 1 km/h = (1/3,6) m/s.
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