## Pages

### CTechnotips: Hexadecimal to binary conversion in c language

To convert or change the hexadecimal number to binary number replace the each octal digits by a binary number using hexadecimal to binary chart.

 Hexadecimal Binary 0 0000 1 0001 2 0010 3 0011 4 0100 5 0101 6 0110 7 0111 8 1000 9 1001 A 1010 B 1011 C 1100 D 1101 E 1110 F 1111

For example we want to convert or change hexadecimal number 65B2 to binary. For this we will replace each hexadecimal digit to binary values using the above table:

Hexadecimal number:  6    5    B    2
Binary values:     0110 0101 1011 0010

So (65B2)16 = (0110010110110010)2

C program for hexadecimal to binary conversion

#include<stdio.h>
#define MAX 1000

int main(){
long int i=0;

printf("\nEquivalent binary value: ");
case '0': printf("0000"); break;
case '1': printf("0001"); break;
case '2': printf("0010"); break;
case '3': printf("0011"); break;
case '4': printf("0100"); break;
case '5': printf("0101"); break;
case '6': printf("0110"); break;
case '7': printf("0111"); break;
case '8': printf("1000"); break;
case '9': printf("1001"); break;
case 'A': printf("1010"); break;
case 'B': printf("1011"); break;
case 'C': printf("1100"); break;
case 'D': printf("1101"); break;
case 'E': printf("1110"); break;
case 'F': printf("1111"); break;
case 'a': printf("1010"); break;
case 'b': printf("1011"); break;
case 'c': printf("1100"); break;
case 'd': printf("1101"); break;
case 'e': printf("1110"); break;
case 'f': printf("1111"); break;
}
i++;
}

return 0;
}

Sample output: