Length conversion, convert US survey feet to metres and metres to US survey feet

one US survey foot = 0.304800609601219 metre
one metre = 3.28083333333334 US survey feet

The difference between one US survey foot and one International (Imperial) foot is very insignificant.
one international foot = 0.999 998 survey foot (exactly)

Measures derived from geodetic surveys within the United States in feet should use the US survey foot for conversions to metres.

one survey foot = 1200/3937 metre (exactly) = 0.304800609601219 metre
one international foot = 12 x 0.0254 metre (exactly) = 0.3048 metre
one international foot = 0.0254 x 39.37 US survey foot (exactly) = 0.999 998 US survey foot