Introduction：
Length Unit Converter: Supports online conversion between Kilometer(km), Meter(m), Decimeter(dm), Centimeter(cm), Millimeter(mm), Micrometer(um), Chinese Li, Chinese Zhang, Chinese Chi, Chinese Cun, Chinese Fen, Chinese Li(length), Nautical mile(nmi), Fathom, Mile(mi), Furlong(fur), Yard(yd), Foot(ft), Inch(in).