Implicit conversion from Char to Decimal in C#

In C#, implicit conversion from char to decimal happens automatically when you assign a character value to a decimal variable. The character is converted to its corresponding ASCII or Unicode numeric value, which is then stored as a decimal number.

Syntax

Following is the syntax for implicit conversion from char to decimal −

char c = 'character';
decimal dec = c;  // implicit conversion

How It Works

When you assign a char to a decimal, C# automatically converts the character to its numeric ASCII/Unicode value. For example, the character 'A' has an ASCII value of 65, so it becomes 65.0 when converted to decimal.

Example

using System;

public class Demo {
   public static void Main() {
      char c = 'p';
      decimal dec;
      Console.WriteLine("Implicit conversion from Char to Decimal");
      dec = c;
      Console.WriteLine("Character: " + c);
      Console.WriteLine("Decimal value: " + dec);
   }
}

The output of the above code is −

Implicit conversion from Char to Decimal
Character: p
Decimal value: 112

Multiple Character Conversions

Example

using System;

public class CharToDecimalDemo {
   public static void Main() {
      char[] characters = {'A', 'B', 'Z', 'a', 'z', '0', '9'};
      
      Console.WriteLine("Character to Decimal Conversions:");
      Console.WriteLine("----------------------------------");
      
      foreach (char ch in characters) {
         decimal decValue = ch;  // implicit conversion
         Console.WriteLine($"'{ch}' -> {decValue}");
      }
   }
}

The output of the above code is −

Character to Decimal Conversions:
----------------------------------
'A' -> 65
'B' -> 66
'Z' -> 90
'a' -> 97
'z' -> 122
'0' -> 48
'9' -> 57

Common ASCII Values

Conclusion

Implicit conversion from char to decimal in C# automatically converts characters to their ASCII/Unicode numeric values. This conversion is useful when you need to perform mathematical operations on character data or when working with character codes in decimal format.