Python Program to Calculate Sum of Even Numbers

Write a Python Program to Calculate the Sum of Even Numbers from 1 to N using the While Loop and For Loop with an example.

Python Program to Calculate Sum of Even Numbers from 1 to N using For Loop

This Python program allows the user to enter the maximum limit value. Next, it is going to calculate the sum of even numbers from 1 to that user-entered value.

In this example, we are using Python For Loop to keep the number between 1 and the maximum value.

TIP: I suggest you refer to the Python Program to print Even Numbers from 1 to N article to understand the logic behind printing Even numbers in Python.

# Calculate Sum of Even Numbers from 1 to N
 
maximum = int(input(" Please Enter the Maximum Value : "))
total = 0

for number in range(1, maximum+1):
    if(number % 2 == 0):
        print("{0}".format(number))
        total = total + number

print("The Sum of Even Numbers from 1 to {0} = {1}".format(number, total))

The sum of even numbers output

 Please Enter the Maximum Value : 15
2
4
6
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10
12
14
The Sum of Even Numbers from 1 to 15 = 56

Python Program to Calculate Sum of Even Numbers from 1 to N without If Statement

This sum of even numbers example program is the same as above. But we altered the Python For Loop to remove If block.

# Calculate Sum of Even Numbers from 1 to N
 
maximum = int(input(" Please Enter the Maximum Value : "))
total = 0

for number in range(2, maximum + 1, 2):
    print("{0}".format(number))
    total = total + number

print("The Sum of Even Numbers from 1 to {0} = {1}".format(number, total))

The sum of even numbers using a for loop output

 Please Enter the Maximum Value : 12
2
4
6
8
10
12
The Sum of Even Numbers from 1 to 12 = 42

Program to find the Sum of Even Numbers using While Loop

In this sum of even numbers example, we replaced the For Loop with While Loop. Refer to the Python For Loop and the Python While Loop articles.

# Calculate Sum of Even Numbers from 1 to N
 
maximum = int(input(" Please Enter the Maximum Value : "))
total = 0
number = 1
 
while number <= maximum:
    if(number % 2 == 0):
        print("{0}".format(number))
        total = total + number
    number = number + 1

print("The Sum of Even Numbers from 1 to N = {0}".format(total))

Python sum of even numbers using a while loop output

 Please Enter the Maximum Value : 20
2
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14
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20
The Sum of Even Numbers from 1 to N = 110

Program to find the Sum of Even Numbers from 1 to 100

This Python program allows users to enter Minimum and maximum values. Next, it calculates the sum of even numbers from the Minimum to the maximum value.

# Calculate Sum of Even Numbers from 1 to 100

minimum = int(input(" Please Enter the Minimum Value : "))
maximum = int(input(" Please Enter the Maximum Value : "))
total = 0

for number in range(minimum, maximum+1):
    if(number % 2 == 0):
        print("{0}".format(number))
        total = total + number

print("The Sum of Even Numbers from {0} to {1} = {2}".format(minimum, number, total))

Python Program to Calculate Sum of Even Numbers from 1 to N

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