How to convert Millimeter to Chain

Conversion factor and calculation steps from Millimeter (mm) to Chain (ch).

Conversion logic

Each unit is defined via the base unit (meter (m)). The value is first converted to the base unit, then to the selected unit.

1 mm = 0.001 m

1 ch = 20.1168 m

1 mm × 0.001 = 0.001 m

0.001 m ÷ 20.1168 = 4.97096954e-5 ch