# How to convert Binary Number to Decimal , HexaDecimal and Octal Number using C# ?

This is my second post of the series of the Number Converter for Windows Phone 7 sourcecode . In my previous post i talked about

In this blog post , i describe or share the code  that converts a Binary Number to Decimal , HexaDecimal and Octal Number using C# in Windows Phone 7 .

```public static class BinaryConverter
{
/// <summary>
/// Binaries to decimal.
/// </summary>
/// <param name="bin">The bin.</param>
/// <returns></returns>
public static Int64 BinaryToDecimal(string bin)
{
long l = Convert.ToInt64(bin, 2);
int i = (int)l;
return i;
}
/// <summary>
/// Binaries to octal.
/// </summary>
/// <param name="bin">The bin.</param>
/// <returns></returns>
public static Int64 BinaryToOctal(string bin)
{
Int64 Deci = BinaryConverter.BinaryToDecimal(bin);
return DecimalConverter.DecimalToOctal(Deci);
}
/// <summary>
/// Binaries to hexa.
/// </summary>
/// <param name="bin">The bin.</param>
/// <returns></returns>
public static string BinaryToHexa(string bin)
{
Int64 Deci = BinaryConverter.BinaryToDecimal(bin);
return DecimalConverter.DecimalToHex(Deci);
}
}```

DecimalConverter is a static class that was described in my previous blog post . The Convert method is again used to convert from Binary to decimal .

Please do share with me of any other simple logic to convert Binary Number to other formats 🙂

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