To convert US survey rods to chains, multiply the value by 0.250001. To go the other way, multiply chains by 3.99999 to get US survey rods.
| US Survey Rods (rdUS) | Chains (ch) |
|---|---|
| 1 rdUS | 0.250001 ch |
| 2 rdUS | 0.500001 ch |
| 3 rdUS | 0.750002 ch |
| 4 rdUS | 1 ch |
| 5 rdUS | 1.25 ch |
| 6 rdUS | 1.5 ch |
| 7 rdUS | 1.75 ch |
| 8 rdUS | 2 ch |
| 9 rdUS | 2.25 ch |
| 10 rdUS | 2.50001 ch |
| 12 rdUS | 3.00001 ch |
| 14 rdUS | 3.50001 ch |
| 15 rdUS | 3.75001 ch |
| 20 rdUS | 5.00001 ch |
| 21 rdUS | 5.25001 ch |
| 24 rdUS | 6.00001 ch |
| 25 rdUS | 6.25001 ch |
| 30 rdUS | 7.50002 ch |
| 40 rdUS | 10 ch |
| 50 rdUS | 12.5 ch |
| 60 rdUS | 15 ch |
| 75 rdUS | 18.75 ch |
| 80 rdUS | 20 ch |
| 100 rdUS | 25.0001 ch |
| 200 rdUS | 50.0001 ch |
| 250 rdUS | 62.5001 ch |
| 300 rdUS | 75.0002 ch |
| 400 rdUS | 100 ch |
| 500 rdUS | 125 ch |
| 750 rdUS | 187.5 ch |
| 1,000 rdUS | 250.001 ch |
US survey rod (rdUS). The US survey rod is 16.5 US survey feet, about 5.0292 m.
Chain (ch). A chain is 66 feet (20.1168 m), a surveying unit; 80 chains make one mile.
There are 0.250001 chains in one US survey rod.
Multiply the number of US survey rods by 0.250001. For example, 10 US survey rods equal 2.50001 chains.
One chain equals 3.99999 US survey rods.
3.00001 chains. Other common values: 5 US survey rods = 1.25 chains and 100 US survey rods = 25.0001 chains.