public static LinearUnit Millimeters {get;}

// convert 11 centimeters to millimeters
double mm = LinearUnit.Centimeters.ConvertTo(11, LinearUnit.Millimeters);

// convert the result back to centimeters
double cm = LinearUnit.Millimeters.ConvertTo(mm, LinearUnit.Centimeters);

// convert the millimeter result back to meters
double meters = LinearUnit.Millimeters.ConvertToMeters(mm);