C Program to Convert Decimal to Hexadecimal

In this tutorial you will learn about the C Program to Convert Decimal to Hexadecimal and its application with practical example.

In this tutorial, we will learn to create a C program that will Convert Decimal to Hexadecimal in C programming.

Table Of Contents−

C Program to Convert Decimal to Hexadecimal

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.

Basic Input and Output function in C Programming.
Basic C programming.
While loop in C programming.

Program to Convert Decimal to Hexadecimal:-

As we all know the c is a very powerful language. With the help of c programming language, we can make many programs. We cal perform many input-output operations using c programming. In today’s tutorial, we take the input in Decimal from the user and convert it into HexaDecimal. With the help of c programming, we can perform many conversion operations.

With the help of this program, we can Convert Decimal to Hexadecimal.

Algorithm:-

1. Declare the variables for the program. 

2. Takeing the input number from the user in decimal for the program. 

3. Passing that input to the string function.

4. Pass that number to a for loop for convertion.  

4. Print the Result. 

5. End the program.

1. Declare the variables for the program.

2. Takeing the input number from the user in decimal for the program.

3. Passing that input to the string function.

4. Pass that number to a for loop for convertion.

4. Print the Result.

5. End the program.

Program to Convert Decimal to Hexadecimal:-

#include <stdio.h>

void main() 
 {
    /* Declaring the variables for the program  */    
	long int deci,rmd,q,dn=0,m,l;
	int i=1,j,tmp;
    char s;
    
    printf("\n\nConvert Decimal to Hexadecimal:\n ");
    printf("-------------------------------------\n");
    /* Taking input in decimal number from the user for convertion */
	printf("Input  any Decimal number: ");
	scanf("%ld",&deci);
	
	/* Concerting the decimal number to a hexadecimal number using for loop */
	q = deci;
        for(l=q;l>0;l=l/16)
               {
		tmp = l % 16;
		if( tmp < 10)
		           tmp =tmp + 48; else
		         tmp = tmp + 55;
                         dn=dn*100+tmp;
	        }
	      /* Printing the output number converted in hexadecimal */  
          printf("\nThe equivalent Hexadecimal Number : ");
          for(m=dn;m>0;m=m/100)
            {
               s=m % 100;
               printf("%c",s);
            }
    printf("\n\n");
    return 0;
}

#include <stdio.h>

void main()

{

/* Declaring the variables for the program */

long int deci,rmd,q,dn=0,m,l;

int i=1,j,tmp;

char s;

printf("\n\nConvert Decimal to Hexadecimal:\n ");

printf("-------------------------------------\n");

/* Taking input in decimal number from the user for convertion */

printf("Input any Decimal number: ");

scanf("%ld",&deci);

/* Concerting the decimal number to a hexadecimal number using for loop */

q = deci;

for(l=q;l>0;l=l/16)

{

tmp = l % 16;

if( tmp < 10)

tmp =tmp + 48; else

tmp = tmp + 55;

dn=dn*100+tmp;

}

/* Printing the output number converted in hexadecimal */

printf("\nThe equivalent Hexadecimal Number : ");

for(m=dn;m>0;m=m/100)

{

s=m % 100;

printf("%c",s);

}

printf("\n\n");

return 0;

}

Output:-

In the above program, we have first initialized the required variable.

deci = it will hold the integer value.

i = it will hold the integer value.

Taking the input from the message.

Loop for converting the number.

Printing output number.

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C Program to Convert Decimal to Hexadecimal