This calculator allows you to convert from Chain to Chain (US survey) and in a reverse direction. To convert from Chain to Chain (US survey), enter the amount of Chain into the first input and to convert from Chain (US survey) to Chain, enter the amount of Chain (US survey) into the second input.
20 Chain = 19.99996 Chain (US survey)
Chain to Meter | Chain to Foot | Chain to Centimeter | Chain to Inch | Chain to Kilometer | Chain to Mile | Chain to Millimeter | Chain to Yard | Chain to Micrometer |20 Chain equal 19.99996 Chain (US survey).
Every 1 Chain = 0.999998 Chain (US survey) and so, 20 Chain = 20 multiplied by 0.999998 = 19.99996 Chain (US survey).
What is the chain?
The chain is a unit of length. It equals 66 feet. The chain was first introduced between 1579 and 1607.
Several countries have used chain for several centuries especially in England. Note that there are 80 chains in one mile.
The main use of the chain is in laying out US townships. Official governments must use US survey chain to do surveys according to the federal law passed in 1785.
| 10 Chain = 9.99998 Chain (US survey) |
| 11 Chain = 10.999978 Chain (US survey) |
| 12 Chain = 11.999976 Chain (US survey) |
| 13 Chain = 12.999974 Chain (US survey) |
| 14 Chain = 13.999972 Chain (US survey) |
| 15 Chain = 14.99997 Chain (US survey) |
| 16 Chain = 15.999968 Chain (US survey) |
| 17 Chain = 16.999966 Chain (US survey) |
| 18 Chain = 17.999964 Chain (US survey) |
| 19 Chain = 18.999962 Chain (US survey) |
| 20 Chain = 19.99996 Chain (US survey) |
| 21 Chain = 20.999958 Chain (US survey) |
| 22 Chain = 21.999956 Chain (US survey) |
| 23 Chain = 22.999954 Chain (US survey) |
| 24 Chain = 23.999952 Chain (US survey) |
| 25 Chain = 24.99995 Chain (US survey) |
| 26 Chain = 25.999948 Chain (US survey) |
| 27 Chain = 26.999946 Chain (US survey) |
| 28 Chain = 27.999944 Chain (US survey) |
| 29 Chain = 28.999942 Chain (US survey) |
| 30 Chain = 29.99994 Chain (US survey) |
