Chain is length unit, symbol: [ch]. Definition of 1 chain ≡ 66 ft (US) ≡ 4 rods. (Chain - Gunter's; Surveyor's). Compared to metre, chain is bigger unit.
• 1 [ch] = (exactly) `79200/3937` [m] = `2.01168402336805*10^01` [m]
• 1 [m] = (exactly) `3937/79200` [ch] = 0.049709595959596 [ch]
Multiply convert of chain to common length units:[ch]
Length units sort by name in ABC order
U.S. National Institute of Standards and Technology Handbook 44 Appendix C - General Tables of Units of Measurement 2013 Edition. http://www.nist.gov/pml/wmd/pu...