MEASURE	IMPERIAL	METRIC
Length	1 ft = 12 in	1 cm = 10 mm
	1 yd = 3 ft	1 m = 100 cm
	1 ch = 66 ft	1 km = 1000 m
	1 mi = 80 ch
	1 mi = 5280 ft
Area	1 sq ft = 144 sq in	1 cm2 = 100 mm2
	1 sq yd = 9 sq ft	1 m2 = 10,000 cm2
	1 acre = 43,560 sq ft	1 hectare = 10,000 m2
	1 acre = 10 sq ch	1 km2 = 100 hectares
	1 sq mi = 640 acres
Volume  (Solid)	1 cu ft = 1728 cu in	1 cc3 = 1,000 mm3
	1 cu yd = 27 cu ft	1 m3= 1,000,000 cm3
	1 cord = 128 cu ft    (stacked wood)
	1 cu ft = 12 fbm
Volume  (Liquid)	1 qt = 5 cups	1 l = 1000 ml
	1 gallon = 4 qt
Weight	1 lb = 16 oz	1 kg = 1000 g
	1 ton = 2000 lbs	1 metric ton = 1000 kg