About the Units
millimeter (mm)
A tiny length unit equal to 0.001 meters, used in precision engineering.
chain (ch)
A traditional length unit used in land surveying and agriculture.
Common Conversions
- 1 mm = 0.000049709597 ch
- 20116.84 mm = 1 ch
Convert from millimeters to chains
Conversion Information
To convert from millimeters to chains, multiply by 0.000049709597
1 mm = 0.000049709597 ch