How to convert US survey foot to Didot point

Conversion factor and calculation steps from US survey foot (ft US) to Didot point (dd).

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 ft US = 0.304800609601 m

1 dd = 0.000376065 m

1 ft US × 0.304800609601 = 0.304800609601 m

0.304800609601 m ÷ 0.000376065 = 810.499806154 dd