CONVERSION METRIC (english measure)		CONVERSION METRIC (S.I. measure)
Surface 1 sq. inch = 6,4516 cm2 1 sq. foot = 0,09290 m2 1 sq. yard = 0,8361 m2 1 sq. mile = 2,589 Km2 1 acre = 4047 m2		Surface 1 cm2 = 0,155 sq. inch 1 m2 = 10,764 sq. feet 1 m2 = 1,1960 sq. yeard 1 Km2 = 0,386 sq. mile 1 ettaro = 10000 m2 = 2,471 acres