How to do Convert int to binary in Python

Python, PythonBasic

In this post, we will explore How to do Convert int to binary in Python using the built-in method and str.format() and f-string.

1. bin() function to Convert int to binary in python

The Python inbuilt bin() function is used to get an integer’s value binary representation that it returns as a string prefixed with “0b”.The value should be a valid Python int object. To remove the prefixed “0b” can use slicing.

Syntax

bin(val)

Parameter

  • Val: The number that we want to convert into binary string

Python Program to convert int to binary

mynum = 45
print(bin(mynum))


#eliminate "ob" prefix

mynum = 45
bin_val = bin(mynum)[2:]
print(bin_val)

Output

0b101101

101101

Python Program to convert int to 16-bit binary

In this example, we are using the bin() function to convert int number to 16-bit binary.

num = 45

binary= bin(num)[2:].zfill(16)

print(binary)

Output

0000000000101101

2. str.format() to convert int to binary in python

The str. format() method can be used to convert an integer number to binary using string presentation “b”. Let us understand with an example.

Python Program to convert integer to binary

num = 45
binary = "{0:b}".format(num)
print(binary)

Output

101101

Python int to 16-bit binary Using format()

In this example, we are using the format() function to convert int number to 16-bit binary.

num = 45

binary= '{0:016b}'.format(num)


print(binary)

Output

0000000000101101

3. Using format() to Convert int to binary in python

The easy way to remove the “0b” prefix is the Python built-in format() function. It takes two arguments the first argument is the value we want to convert into binary and the Second argument is a format that covert value to the given format.

Syntax

format(val,format)

Parameters

  • val: The number that we want to convert into binary string
  • Format : It convert the passed value to given format.

FormatDescription
=Places the sign to the leftmost position
bConvert value to Binary format.
cConverts the value to Unicode character
dConvert value to Binary to Decimal format
oConvert the value to Octal format
xConvert the value to Hex format in lower case.
EConvert value to scientific format with upper case E
<Left align the output
>Right align the output
_Use to add thousand separator
Table of format Type

Python Program to int to binary Using format()

In this example, we convert int to binary bypassing b as a format. more formates 

binary = format(45, "b")

print(binary)

Output

101101

4. f-string to convert int to binary in python

Python version 3.6 introduced the formatted string literal also known as “f-string”. To use it we have to start the string with “F” or “f” before quotation marks and write a Python expression or variable that contains literal values between { } that are evaluated at runtime. The f-string controls the final output of the formatted string.

Python Program to convert int to binary with leading zero

num = 45
binary = f"{num:08b}"
print(binary)

Output

00101101

Python Program to convert int to binary Without leading zero

num = 45
binary = f"{num:b}"
print(binary)

Output

101101

Summary

In this post, we have learned how to do Convert int to binary in python by using the built-in function bin() and format() str.format() and f-string.

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