public double ConvertFromMeters( 
   double meters
)

{
  // convert 10 feet to meters
  double metres = LinearUnit.Feet.ConvertToMeters(10);

  // convert 20 meters to feet
  double feet = LinearUnit.Feet.ConvertFromMeters(20.0);
}

{
  try
  {
    // create a british 1936 foot
    var britFoot = LinearUnit.CreateLinearUnit(9095);
    string unitName = britFoot.Name;                        //  "Foot_British_1936"
    double conversionFactor = britFoot.ConversionFactor;    // 0.3048007491
    double metersPerUnit = britFoot.MetersPerUnit;
    int factoryCode = britFoot.FactoryCode;                 // 9095

    // convert 10 british 1936 feet to centimeters
    double val = britFoot.ConvertTo(10, LinearUnit.Centimeters);

    // convert 10 m to british 1936 feet
    val = britFoot.ConvertFromMeters(10);
  }
  catch (ArgumentException)
  {
    // ArgumentException will be thrown by CreateLinearUnit
    // in the following scenarios:
    // - if the factory code used is a non-linear factory code
    //   (i.e. it corresponds to square meters which is an area unit code)
    // - if the factory code used is invalid
    //   (i.e. it is negative or doesn't correspond to any factory code)
  }

}