Difference Between Simple Interest and Compound Interest (With Table)

Almost all understand both simple interest and compound interest were 2 essential concepts that are frequently utilized in various financial products, particularly in banking. Simple interest is used in loans such as installment loans, auto loans, school loans, and mortgages. This compound interest was utilized either by the majority of bank deposits to pay off the interest. That pays more than just interest.

As in the case of interest imposed on the credit balance, the cost of borrowing money is characterised at interests. If a deposit certificate is present, interests may be the values corresponding to a deposit for money

Simple Interest vs Compound Interest

The main difference between Simple Interest and Compound Interest Simple interest is Compound interest is calculated on the primary amount only and on the massive financial only interest compounded more than a period cycle. In Simple Interest, The principle is continuous but in the compound, interest will be changed

The cost of borrowing money is referred to as interest, and the borrower pays a charge to just the lender in exchange for the loan. This interest, which is usually represented as just a %, might well be simple and compounded. Simple interest is calculated on the loan or deposit’s principal amount.

Compound interest, on the other hand, is calculated using This concept and the income that it generates through period. It is easier to compute simple interest than composite interest as it is mostly collected by that of the loan and bank balances.

The principle amount as well as the interest which accrues on it over time. Simple interest is easier to calculate than compound interest since it is levied primarily on the main balance of the loan and deposit.

Compound interest is also employed by savings accounts, corporate bonds, and just about any other investment that allows for gain reinvest.

Comparison Table Between Simple Interest and Compound Interest

Parameters of ComparisonSimple Interest Compound Interest
DefinitionSimple interest is described as the quantity repaid in full for borrowing money over even a specified period. Simple interest is described as the quantity paid back for borrowing the money over a predetermined amount of time.Compound interest occurs when a large principal amount surpasses the due date for payment, as well as the rate of interest, over an amount of time.
FormulaS.I. = (P × T × R) ⁄ 100C.I. = P(1+R⁄100) t − P
Interest LeviedPrincipal amountThe principal sums as well as the income which accrues
ReturnIt will be offering a very low returnIt will be offering a high return
UsefulWhenever it comes to purchasing something, simple interest has always been preferable. Almost the majority of vehicle loans are calculated using basic interest.Compound interest may be beneficial while investing. Because it enables the funds will expand at a quicker rate

What is Simple Interest?

The cost of borrowing is expressed as simple interest (SI). It is just interesting mostly on principal balance calculated as a proportion of the principal amount. Lenders would profit under simple interest since they will only have to pay interest on loans that take out. In those other terms, simple interest is the amount paid to the lender to use borrowed funds for a specified period.

It is easy to calculate Simple interest is calculated by multiplying the amount owed even by duration and principal amount. Simple interest doesn’t take preceding interest into account. It is dependent only on the initial contribution amount.

When calculating interest payments on auto and consumer loans, basic interest is used. Even just a certificate of deposit calculates the return on investment using simple interest.

Lenders profit more with simple interest because there is no accumulating power. To put it another way, there is no income on interest. Investors, on the other hand, may lose if their investments are based on basic interest rates.

What is Compound Interest?

Compound interest (CI) earns interest on the previously earned interest, as opposed to simple interest, which earns interest solely on the main sum. The interest is applied to both the principal. CI stands for Interest on Interest. The entire concept centers upon earning a greater return through compounding interest upon on initial amount.

In many other words, CI seems to have the potential to yield a higher return than simply earning interest on an investment. Because compound interest is predicated upon on primary power of compounding, the investment grows exponentially.

The regularity for compounding is determined either by banks, finance companies, or borrowers. This can be done on either a monthly, weekly, bimonthly, half-annual, or annual basis. The higher the proportion of compounding, the greater the amount of interest accrued. As a result, investors profit more from compound interest than debtors.

Compound interest is used by lenders for some loans. Compound interest, on the other hand, is most often employed in investing.

Main Differences Between Simple Interest and Compound Interest

1. In Simple Interest the growth remains constant. But in the Compound Interest, the growth has been very fast.

2. In Simple Interest the interest is calculated mostly on principle amount. But in Compound Interest, it is charged interest on both the principal as well as the accumulated interest

3. In Simple Interest the return will be very much lesser. But in the compound Interest, the return is very high

4. In Simple Interest there is a constant principle but in compound Interest, the principal will remain change

5. In Simple Interest the calculation is very easy and easily understandable. But in the Compound Interest, the calculation is very difficult as periods of compounding involves


Interest is essentially a charge to utilizing somebody else’s cash. Risk, inflation, time worth of savings (impact of compounding), and opportunity cost are among the reasons for paying interest.

As discussed in the preceding formula, simple interest is easy to calculate, but compound interest is tough and complex. Just like in the preceding example, calculating equally simple and compound interest for just a given time, rate, and principal reveals how compound interest has always been larger than simple interest owing towards the multiplicative effect, commonly known as the time value of money.

Realizing the distinction between these two approaches can enable you to select the finest mortgage as well as the best option for storing your earnings. But if you’re a borrower who does not want to go into a long, costly debt, you will search for a loan that does not compound. However, and if you’re an investor looking to make a lot of money that you can utilize later, you will search for options that compound at a greater frequency.


  1.  https://www.cambridge.org/core/journals/journal-of-the-institute-of-actuaries/article/an-early-book-on-compound-interest-richard-witts-arithmeticall-questions/EC890F3D408B8B035B63095CE01A5D0E 
  2. https://www.jstor.org/stable/43236859
2D vs 3D