using static System.Console; using System.Globalization; public class Program { public static void Main() { decimal valor; if (decimal.TryParse("123.45", out valor)) WriteLine(valor); if (decimal.TryParse("123,45", NumberStyles.AllowCurrencySymbol | NumberStyles.AllowDecimalPoint | NumberStyles.AllowThousands, new CultureInfo("pt-BR"), out valor)) { WriteLine(valor); } } } //https://pt.stackoverflow.com/q/48409/101