# C code to convert decimal to hexadecimal

Levels of difficulty: / perform operation:

Hexadecimal number system: It is base 16 number system which uses the digits from 0 to 9 and A, B, C, D, E, F.

Decimal number system:
It is base 10 number system which uses the digits from 0 to 9

Following steps describe how to convert decimal to hexadecimal
``` Step 1: Divide the original decimal number by 16 Step 2: Divide the quotient by 16 Step 3: Repeat the step 2 until we get quotient equal to zero. ```
Equivalent binary number would be remainders of each step in the reverse order.

For example we want to convert decimal number 900 in the hexadecimal.

Step 1: 900 / 16 Remainder : 4 , Quotient : 56
Step 2: 56 / 16 Remainder : 8 , Quotient : 3
Step 3: 3 / 16 Remainder : 3 , Quotient : 0

So equivalent hexadecimal number is: 384
That is (900)10 = (384)16

### C Program

```#include<stdio.h>
int main() {
long int decimalNumber,remainder,quotient;
int i=1,j,temp;
printf("Enter any decimal number: ");
scanf("%ld",&decimalNumber);
quotient = decimalNumber;
while(quotient!=0) {
temp = quotient % 16;
//To convert integer into character
if( temp < 10)
temp =temp + 48; else
temp = temp + 55;
quotient = quotient / 16;
}
printf("Equivalent hexadecimal value of decimal number %d: ",decimalNumber);
for (j = i -1 ;j> 0;j--)
return 0;
}
```

### Output

```Enter any decimal number: 45
Equivalent hexadecimal value of decimal number 45: 2D
```

### C Program

```#include<stdio.h>
int main() {
long int decimalNumber;
printf("Enter any decimal number: ");
scanf("%d",&decimalNumber);
```Enter any decimal number: 45