# Decimal to hex python – Python Program to Convert Decimal to Hexadecimal

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

## 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

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