Circumference of a circle is defined as length of perimeter of circle. Mathematically, circumference of a circle having radius r will be 2πr. Quite simeple, so we need to just code this simple mathematical formula as Python Code.
Python Code for Finding Circumference of Circle
# Calculate circumference of a Circle
# Importing Python's Math Module
import math
# Using value of pie inside math inside
π = math.tau
# Ask user for radius of circle
radius = float(input("Enter radius of circle => "))
# Circumference of circle = 2πr
circumference = 2 * π * radius
# Printing out circumference of circle
print("Circumference of circle is => ", circumference)Output of Above Code
Enter radius of circle => 5
Circumference of circle is => 62.83185307179586