What is simple interest?

Simple interest is interest calculated only on the principal amount, not on accumulated interest. The formula is: Interest = Principal × Rate × Time.

How is simple interest different from compound interest?

Simple interest is calculated only on the principal. Compound interest is calculated on the principal plus accumulated interest, resulting in faster growth.

When is simple interest used?

Simple interest is commonly used for short-term loans, some bonds, and certain financial instruments. Most savings accounts and long-term loans use compound interest.

Simple Interest Calculator

Overview

Calculate simple interest based on principal amount, interest rate, and time period, useful for loans and investments.

The Simple Interest Calculator helps you calculate the interest earned on a principal amount based on the interest rate and time period. This tool is useful for understanding how much interest you'll earn on a loan or investment.

How to use

Calculate simple interest in a few quick steps.

Enter principal amount: Input the initial amount being borrowed or invested.
Add interest rate: Enter the annual interest rate as a percentage.
Set time period: Specify the time period in years (or convert months to years).
View interest earned: Review the simple interest amount and total value.

FAQs

What is simple interest?: Simple interest is interest calculated only on the principal amount, not on accumulated interest. The formula is: Interest = Principal × Rate × Time.
How is simple interest different from compound interest?: Simple interest is calculated only on the principal. Compound interest is calculated on the principal plus accumulated interest, resulting in faster growth.
When is simple interest used?: Simple interest is commonly used for short-term loans, some bonds, and certain financial instruments. Most savings accounts and long-term loans use compound interest.