Conversions

To convert American Standard units into Metric units, or vice versa, you need to know some conversion factors which show how the units relate to one another.

Convert	Metric to U.S.	U.S. to Metric
Length:	1 cm 0.4 in	1 in = 2.54 cm
	1 m 39.37 in	1 ft 30 cm
	1 km 0.6 mi	1 yd 0.9 m
		1 mi 1.6 km

Mass:	1 g .04 oz	1 oz 28.4 g
	1 kg = 2.2 lb	1 lb 0.45 kg

Volume:	1 L 1.06 qt	1 qt 0.95 L
		1 gal 3.8 L

Examples:

50 km is approximately how many miles?
From the above table, 1 km 0.6 mile, so 50 miles would be 50 times 0.6 miles. So 50 km 30 miles.
110 lb is approximately how many kilograms?
1 lb 0.45 kg, so 110 lb 110 • 0.45 = 49.5 50 kg.

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