Chain.

Chain to Millimeter

1 ch = 20116.8 mm

Chain to Centimeter

1 ch = 2011.68 cm

Chain to Decimeter

1 ch = 201.168 dm

Chain to Meter

1 ch = 20.1168 m

Chain to Kilometer

1 ch = 0.0201168 km

Chain to Micrometer

1 ch = 20116800 μm

Chain to Nanometer

1 ch = 20116800000 nm

Chain to Inch

1 ch = 792 in

Chain to Foot

1 ch = 66 ft

Chain to Yard

1 ch = 22 yd

Chain to Mile

1 ch = 0.0125 mi

Chain to Nautical Mile

1 ch = 0.0108622030238 nmi