public static void Main()
Console.WriteLine("Enter distance");
double distance = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("If you want to convert CM to inches type 1");
Console.WriteLine("If you want to convert inches to CM type 2");
Console.WriteLine("If you want to convert Metres to Feet type 3");
Console.WriteLine("If you want to convert Feet to Metres type 4");
Console.WriteLine("Please make your choice now");
string choice = Console.ReadLine();
if (choice != "1" || choice != "2" || choice != "3" || choice != "4")
Console.WriteLine("NOT VALID!");
answer = CmtoInches(distance);
answer = InchestoCm(distance);
answer = MetrestoFeet(distance);
answer = FeetToMetres(distance);
static double CmtoInches(double distance)
double inches = distance * 0.39370079;
Console.WriteLine(Math.Round(inches, 2));
static double InchestoCm(double distance)
double cms = distance * 2.54;
Console.WriteLine(Math.Round(cms, 2));
static double MetrestoFeet(double distance)
double feet = distance * 3.28084;
Console.WriteLine(Math.Round(feet, 2));
static double FeetToMetres(double distance)
double metres = distance * 0.3048;
Console.WriteLine(Math.Round(metres, 2));