To convert millimeters to chains, multiply the value by 4.97097 × 10⁻⁵. To go the other way, multiply chains by 20,116.8 to get millimeters.
| Millimeters (mm) | Chains (ch) |
|---|---|
| 1 mm | 4.97097 × 10⁻⁵ ch |
| 5 mm | 0.000248548 ch |
| 10 mm | 0.000497097 ch |
| 25 mm | 0.00124274 ch |
| 50 mm | 0.00248548 ch |
| 100 mm | 0.00497097 ch |
| 250 mm | 0.0124274 ch |
| 500 mm | 0.0248548 ch |
| 1,000 mm | 0.0497097 ch |
| 2,500 mm | 0.124274 ch |
| 5,000 mm | 0.248548 ch |
| 10,000 mm | 0.497097 ch |
| 100,000 mm | 4.97097 ch |
| 1,000,000 mm | 49.7097 ch |
Millimeter (mm). A millimeter is one thousandth of a meter, used for small measurements such as thickness and rainfall.
Chain (ch). A chain is 66 feet (20.1168 m), a surveying unit; 80 chains make one mile.
There are 4.97097 × 10⁻⁵ chains in one millimeter.
Multiply the number of millimeters by 4.97097 × 10⁻⁵. For example, 10 millimeters equal 0.000497097 chains.
One chain equals 20,116.8 millimeters.
0.0497097 chains. Other common values: 100 millimeters = 0.00497097 chains and 10,000 millimeters = 0.497097 chains.