Simple Interest Using Python

leap year program in python
Reading Time: 2 minutes

This Python program calculates the simple interest based on the principal amount, interest rate, and time period provided by the user. Simple interest is a basic financial concept that determines the additional amount of money earned or paid on top of the initial investment or loan amount.


  1. Read the principal amount, interest rate, and time period from the user.
  2. Calculate the simple interest using the formula: interest = (principal * rate * time) / 100.
  3. Print the calculated simple interest.

Python Program:

     # Input principal amount, interest rate, and time period
principal = float(input("Enter the principal amount: "))
rate = float(input("Enter the interest rate: "))
time = float(input("Enter the time period in years: "))

# Calculate simple interest
interest = (principal * rate * time) / 100

# Print the calculated simple interest
print("Simple Interest:", interest)


Input :

     Enter the principal amount: 1000
Enter the Interest Rate: 5
Enter the time periods in year : 2

Output :

     Simple Interest : 100.0

In the above example, the user enters a principal amount of 1000, an interest rate of 5%, and a time period of 2 years. The program then calculates the simple interest as 100.0 and displays it as the output.