Simple interest formula is given by:

Simple Interest = (P x T x R)/100

Here, P stands for Principal, T stands for Time and R stands for Rate of Interest

In the following example, we’ll use principal and rate of interest as float values and time as int value just for the sake of simplicity.

# A simple Python3 program to calculate 
# Simple Interest based on user input. 
  
p = float(input("Please provide Principal: "))
r = float(input("Please provide Rate of Interest: "))
t = int(input("Please provide Time: ")) 

si = (p * t * r)/100
      
print('The Simple Interest is', si)

Output

Please provide Principal: 1000
Please provide Rate of Interest: 10
Please provide Time: 1
The Simple Interest is 100.0