How to convert Chain to US survey mile

Conversion factor and calculation steps from Chain (ch) to US survey mile (mi US).

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 ch = 20.1168 m

1 mi US = 1609.34721869 m

1 ch × 20.1168 = 20.1168 m

20.1168 m ÷ 1609.34721869 = 0.012499975 mi US