Comparing Simple Interest Loans vs. Compounding Interest Loans

by Loans & Credit 29 November 2022

Simple Interest Loans

When you shop around for a loan, you’re likely to come across two different options: simple interest loans and compound interest loans. While simple interest only accumulates on the principal balance, compound interest accrues on both the principal and the interest that’s already accumulated.

Let’s take a closer look at the difference between simple interest loans and compounding interest loans so you can choose the ideal products for your unique situation.

What Is Simple Interest?

 simple interest

Simple interest is solely based on the original principal balance of a loan, it doesn’t increase over time. This means you’ll always know how much you’ll pay for the loan plus the fixed interest and be able to budget accordingly. 

In many cases, simple interest is owed on traditional mortgages, car loans, and personal loans[PMO1]. Let’s say you borrow $2,000 and pay a simple interest rate of 3% for one year. You would pay back 3% of $2000 which would come out to $60 in simple interest.

How To Calculate Simple Interest: Simple Interest Calculator? 

Simple interest is calculated using the following formula:  

Simple Interest=P×r×n


P= Principal amount

r= Annual interest rate

n= Term of loan, in years

Let’s Understand Simple Interest With An Example

This example can help you to clear your concept about simple interest. Suppose Mr. David invests 100,00 USD in a fixed deposit for three years at a 7% interest rate. According to the simple interest loan formula, we can calculate the interest Mr. David will earn from the investments. 

Simple Interest = USD 1,00,00*7%*3 years

Simple Interest = USD 2,100

For his investments, Mr. David will receive USD 21,00 at the end of the three years. The financial institution will pay Mr. David an interest of 7% for using his deposit amount for its operations during the simple tenure of his investment for three years. 

The simple interest should be calculated according to the time period of the loan and the simple interest rate. You just need to multiply the amount of the investment by the interest rate and years. 

What Is Compound Interest?

What Is Compound Interest

Compound interest accounts for the principal plus interest that has already accumulated from previous periods. It’s often referred to as “interest on interest.” Some mortgages, personal loans, and student loans follow the compound interest model. 

The higher the interest rate of a loan and the more frequently it compounds, the more interest you’ll pay in the long run. That being said, when you borrow money, compound interest will increase the overall cost of your loan.

How To Calculate Compound Interest: Compound Interest Loan Calculator? 

Compound Interest=P×(1+r) t −P


P=Principal amount

r=Annual interest rate

t=Number of years interest is applied

Let’s Understand Compound Interest With An Example

Now, we will see the example of compound interest. Suppose Mr. David invested USD 100,00 in his fixed deposit account at the rate of 10% for five years. Now, you can calculate compound interest investments by using the Compound interest formula. 

A = 10000*((1+10%)^(5)-1)

A = INR 6,105.

In compound interest, Mr. David will earn USD 6,105 at the end of the year.  On the other hand, with the same investment at the simple rate, Mr. David will earn USD 2,100. Now, you will understand the difference between Simple Interest Loans vs. Compounding Interest Loans. 

Simple Interest Vs. Compound Interest: What’s The Difference?

Simple interest vs. compound interest

Compared to compound interest, simple interest is far easier to calculate and understand. If you take out a simple interest loan, you may only have to worry about the principal and the interest that accrues on that outstanding principal. You’ll likely enjoy lower payments and therefore increase your chances of paying off your loan as planned. 

With a compound interest loan, however, you can expect higher monthly payments. If you’re on a tight budget or have other debt obligations, this type of loan may be problematic and lead to a serious cycle of debt. The good news is there are many simple interest loans on the market so you should be able to find a few options that work for your particular budget and needs.

Bottom Line

Both simple and compound interest loans have their own advantages and disadvantages. Simple interest loans are typically easier to understand and provide a predictable repayment schedule.

On the other hand, compound interest loans may offer a lower overall interest rate. which is the best loan for you, it depends on your requirement. 

Notice: Information provided in this article is for information purposes only and does not necessarily reflect the views of [publisher] or its employees. Please be sure to consult your financial advisor about your financial circumstances and options. This site may receive compensation from advertisers for links to third-party websites.

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