**Decimal to hex python: **In the previous article, we have discussed Python Program to Convert Hexadecimal To Octal

Given a decimal number and the task is to get the respective hexadecimal number using the while loop.

**Examples:**

**Example1:**

**Input:**

Given decimal number = 30

**Output:**

The Hexadecimal value of the given decimal number { 30 } is: 1E

**Example2:**

**Input:**

Given decimal number = 60

**Output:**

The Hexadecimal value of the given decimal number { 60 } is: 3C

- Python Program to Convert Hexadecimal to Decimal
- Python Program to Convert Hexadecimal To Octal
- Python Program to Convert Octal to Binary

## Program to Convert Decimal to Hexadecimal in Python

Below are the ways to convert the given decimal number into hexadecimal :

### Method #1: Using While Loop (Static Input)

**Approach:**

- Give the decimal number as static input and store it in a variable.
- Take a variable say ‘
**k**‘ and initialize its value with 0. - Take a list of length 50 and initialize all the values to zero using the multiplication operator.
- Store it in another variable.
- Loop till the given decimal number is not equal to zero using the while loop.
- Inside the loop, calculate the value of decimal number modulus 16 to get the remainder and store it in another variable.
- Check if the above remainder value is less than 10 using the if conditional statement.
- If the statement is true, then get the character with the ASCII value remainder+48 using the if conditional statement and store it in a variable
- Initialize the hexadecimal list at the index
**‘k’**with the above-calculated character. - Increment the value of
**k**by 1 and store it in the same variable**k**. - Else if the statement is false, get the character with the ASCII value remainder+55.
- Store it in another variable.
- Increment the value of
**k**by 1 and store it in the same variable**k**. - Divide the given decimal number by 16 and store it in the same variable.
- Loop in decreasing order from k-1 to 0 with the stepsize of -1 using the for loop.
- Print the element present at the iterator of the hexadecimal list to get the hexadecimal value of the given decimal number.
- The Exit of the Program.

**Below is the implementation:**

# Give the decimal number as static input and store it in a variable. deciml_num = 30 # Take a variable say 'k' and initialize its value with 0. k = 0 # Take a list of length 50 and initialize all the values to zero using the multiplication operator. # Store it in another variable. Hexa_deciml = ['0']*50 print( "The Hexadecimal value of the given decimal number {", deciml_num, "} is: ") # Loop till the given decimal number is not equal to zero using the while loop. while deciml_num != 0: # Inside the loop, calculate the value of decimal number modulus 16 to get the remainder # and store it in another variable. remndr = deciml_num % 16 # Check if the above remainder value is less than 10 using the if conditional statement. if remndr < 10: # If the statement is true, then get the character with the ASCII value remainder+48 using # the if conditional statement and store it in a variable chrvalue = chr(remndr+48) # Initialize the hexadecimal list at the index 'k' with the above-calculated character. Hexa_deciml[k] = chrvalue # Increment the value of k by 1 and store it in the same variable k. k += 1 else: # Else if the statement is false, get the character with the ASCII value remainder+55. # Store it in another variable. Hexa_deciml[k] = chr(remndr+55) # Increment the value of k by 1 and store it in the same variable k. k += 1 # Divide the given decimal number by 16 and store it in the same variable. deciml_num //= 16 # Loop in decreasing order from k-1 to 0 with the stepsize of -1 using the for loop. for itr in range(k-1, -1, -1): # Print the element present at the iterator value of the hexadecimal list to get the # hexadecimal value of the given decimal number. print(Hexa_deciml[itr], end="")

**Output:**

The Hexadecimal value of the given decimal number { 30 } is: 1E

### Method #2: Using While loop (User Input)

**Approach:**

- Give the decimal number as user input using the int(input()) function input and store it in a variable.
- Take a variable say ‘
**k**‘ and initialize its value with 0. - Take a list of length 50 and initialize all the values to zero using the multiplication operator.
- Store it in another variable.
- Loop till the given decimal number is not equal to zero using the while loop.
- Inside the loop, calculate the value of decimal number modulus 16 to get the remainder and store it in another variable.
- Check if the above remainder value is less than 10 using the if conditional statement.
- If the statement is true, then get the character with the ASCII value remainder+48 using the if conditional statement and store it in a variable
- Initialize the hexadecimal list at the index
**‘k’**with the above-calculated character. - Increment the value of
**k**by 1 and store it in the same variable**k**. - Else if the statement is false, get the character with the ASCII value remainder+55.
- Store it in another variable.
- Increment the value of
**k**by 1 and store it in the same variable**k**. - Divide the given decimal number by 16 and store it in the same variable.
- Loop in decreasing order from k-1 to 0 with the stepsize of -1 using the for loop.
- Print the element present at the iterator of the hexadecimal list to get the hexadecimal value of the given decimal number.
- The Exit of the Program.

**Below is the implementation:**

# Give the decimal number as user input using the int(input()) function input and # store it in a variable. deciml_num = int(input("Enter some random Number = ")) # Take a variable say 'k' and initialize its value with 0. k = 0 # Take a list of length 50 and initialize all the values to zero using the multiplication operator. # Store it in another variable. Hexa_deciml = ['0']*50 print( "The Hexadecimal value of the given decimal number {", deciml_num, "} is: ") # Loop till the given decimal number is not equal to zero using the while loop. while deciml_num != 0: # Inside the loop, calculate the value of decimal number modulus 16 to get the remainder # and store it in another variable. remndr = deciml_num % 16 # Check if the above remainder value is less than 10 using the if conditional statement. if remndr < 10: # If the statement is true, then get the character with the ASCII value remainder+48 using # the if conditional statement and store it in a variable chrvalue = chr(remndr+48) # Initialize the hexadecimal list at the index 'k' with the above-calculated character. Hexa_deciml[k] = chrvalue # Increment the value of k by 1 and store it in the same variable k. k += 1 else: # Else if the statement is false, get the character with the ASCII value remainder+55. # Store it in another variable. Hexa_deciml[k] = chr(remndr+55) # Increment the value of k by 1 and store it in the same variable k. k += 1 # Divide the given decimal number by 16 and store it in the same variable. deciml_num //= 16 # Loop in decreasing order from k-1 to 0 with the stepsize of -1 using the for loop. for itr in range(k-1, -1, -1): # Print the element present at the iterator value of the hexadecimal list to get the # hexadecimal value of the given decimal number. print(Hexa_deciml[itr], end="")

**Output:**

Enter some random Number = 60 The Hexadecimal value of the given decimal number { 60 } is: 3C

Explore more instances related to python concepts from Python Programming Examples Guide and get promoted from beginner to professional programmer level in Python Programming Language.