Weights & Calculations

METRIC SYSTEM1
LENGTH
Unit	Abbreviation	Number of Meters	Approximate U.S. Equivalent
kilometer	km	1,000	0.62 mile
hectometer	hm	100	328.08 feet
decameter	dam	10	32.81 feet
meter	m	1	39.37 inches
decimeter	dm	0.1	3.94 inches
centimeter	cm	0.01	0.39 inch
millimeter	mm	0.001	0.039 inch
micrometer	µm	0.000001	0.000039 inch
AREA
Unit	Abbreviation	Number of Square Meters	Approximate U.S. Equivalent
square kilometer	sq km or km2	1,000,000	0.3861 square miles
hectare	ha	10,000	2.47 acres
are	a	100	119.60 square yards
square centimeter	sq cm or cm2	0.0001	0.155 square inc
VOLUME
Unit	Abbreviation	Number of Cubic Meters	Approximate U.S. Equivalent
cubic meter	m3	1	1.307 cubic yards
cubic decimeter	dm3	0.001	61.023 cubic inches
cubic centimeter	cu cm or cm3 also cc	0.000001	0.061 cubic inch

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