# C# Program to Convert Decimal to Binary

Let’ s say you have set the decimal to be −

decVal = 34;
Console.WriteLine("Decimal: {0}", decVal);

Use the ToString() method for the values you get as a binary number for the decimal value −

while (decVal >= 1) {
val = decVal / 2;
a += (decVal % 2).ToString();
decVal = val;
}

Now set a new empty variable to display the binary number using a loop −

string binValue = "";

## Example

You can try to run the following code to convert decimal to binary in C#.

Live Demo

using System;
using System.Collections.Generic;
using System.Text;
namespace Demo {
class MyApplication {
static void Main(string[] args) {
int decVal;
int val;
string a = "";
decVal = 34;
Console.WriteLine("Decimal: {0}", decVal);
while (decVal >= 1) {
val = decVal / 2;
a += (decVal % 2).ToString();
decVal = val;
}
string binValue = "";
for (int i = a.Length - 1; i >= 0; i--) {
binValue = binValue + a[i];
}
Console.WriteLine("Binary: {0}", binValue);
}
}
}

## Output

Decimal: 34
Binary: 100010
karthikeya Boyini

I love programming (: That's all I know