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