While select Currency Type will show the cost

public static decimal Convert(decimal amount, string fromCurrency, string toCurrency)

        {

            WebClient web = new WebClient();

 

            string url = string.Format("http://www.google.com/ig/calculator?hl=en&q={2}{0}%3D%3F{1}", fromCurrency.ToUpper(), toCurrency.ToUpper(), amount);

 

            string response = web.DownloadString(url);

 

            Regex regex = new Regex("rhs: \\\"(\\d*.\\d*)");

            Match match = regex.Match(response);

 

            decimal rate = System.Convert.ToDecimal(match.Groups[1].Value);

 

            return rate;

        }