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How to Calculate a Student's Grade in Python

Submitted by razormist on Saturday, April 12, 2025 - 23:35.

In this tutorial, we’ll learn how to program "How to Calculate a Student's Grade in Python." The objective is to accurately calculate the total student grade and provide a remark. This tutorial will guide you through the process step by step on how to create a grade calculation process. By the end, you’ll have a clear understanding of how to efficiently perform this task in Python.

This topic is straightforward to understand. Just follow the instructions I provide, and you’ll complete it with ease. The program I’ll demonstrate will show you the correct and efficient way to calculate a student's grade. So, let’s dive into the coding process!

Getting Started:

First you will have to download & install the Python IDLE's, here's the link for the Integrated Development And Learning Environment for Python https://www.python.org/downloads/.

Creating Main Function

This is the main function of the application. The following code will display a simple GUI in terminal console that will display program. To do this, simply copy and paste these blocks of code into the IDLE text editor.
  1. def calculate_grade(marks):
  2.  
  3.     total = sum(marks)
  4.  
  5.     average = total / len(marks)
  6.    
  7.     if average >= 90:
  8.         grade = 'A'
  9.     elif average >= 80:
  10.         grade = 'B'
  11.     elif average >= 70:
  12.         grade = 'C'
  13.     elif average >= 60:
  14.         grade = 'D'
  15.     else:
  16.         grade = 'F'
  17.    
  18.     return total, average, grade
  19.  
  20.  
  21. while True:
  22.     print("\n============= Calculate a Student's Grade =============\n")
  23.  
  24.     s1 = int(input("Enter Subject 1 Grade (1-100): "))
  25.     s2 = int(input("Enter Subject 2 Grade (1-100): "))
  26.     s3 = int(input("Enter Subject 3 Grade (1-100): "))
  27.     s4 = int(input("Enter Subject 4 Grade (1-100): "))
  28.     s5 = int(input("Enter Subject 5 Grade (1-100): "))
  29.  
  30.  
  31.     student_marks = [s1, s2, s3, s4, s5]
  32.  
  33.     total, average, grade = calculate_grade(student_marks)
  34.  
  35.     print("\n")
  36.     print(f"Total Marks: {total}")
  37.     print(f"Average Marks: {average:.2f}")
  38.     print(f"Grade: {grade}")
  39.  
  40.     opt = input("\nDo you want to try again?(yes/no): ")
  41.        
  42.     if opt.lower() == 'yes':
  43.         ret=False
  44.     elif opt.lower() == 'no':
  45.         ret=True
  46.         print("Exiting program....")
  47.     else:
  48.         print("Please enter yes/no:")
  49.         break
  50.  
  51.     if ret == False:
  52.         continue

This program continuously flattens a nested list by going through each sublist and collecting all the individual elements into a single list, displaying the result each time until the user chooses to exit.

Output:

There you have it we successfully created How to Calculate a Student's Grade in Python. I hope that this simple tutorial help you to what you are looking for. For more updates and tutorials just kindly visit this site. Enjoy Coding!

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