Java Program to Calculate Simple Interest


A simple formula gives the Simple Interest:

Simple Interest = (Principal * Time * Rate of Interest) / 100


The principal Amount is the main sum of money you put in a bank. Time is the duration during which you want to calculate the interest generated and the Rate of the interest determines how much interest will be generated against the given principal.


P = 10,000
R = 5
T = 5
OUTPUT: 2500

The interest rate is 5%, the principal amount is 10,000, and the time is 5 years. On the basis of these numbers, we will have to find the simple interest.

P = 3000
R = 7
T = 1

Sample Code

//This is a program that shows how to calculate simple interest on a principal sum of money when //other details like rate of interest and time period are given


class Demo
public static void main (String args [])
//The required values to calculate SI
float P = 1, R = 1, T = 1;

//Mathematical formula to calculate SI

float SI = (P * T * R) / 100;
System.out.println (“Simple Interest = ” + SI);



Simple Interest = 0.01



  • Barry Allen

    A Full Stack Developer with 10+ years of experience in different domain including SAP, Blockchain, AI and Web Development.


Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.