Simple & Compound Interest Calculator
Calculate the interest earned or accrued on an investment or loan using our online calculator. By inputting key parameters such as the principal amount, interest rate, and time period, you can calculate the simple or compound interest.
Simple Interest
Simple interest is calculated only on the principal amount of an investment.
The following formula can be used to find out the simple interest:
 I = P×r×t
 Where,
 I = amount of interest, P = principal amount, r = annual interest rate, t = time in years.
Compound Interest
Compound Interest is calculated on the principal amount and also on the interest of previous periods.
The following formula can be used to find out the compound interest:
 A = P×(1 + r/n)^{nt}
 Where,
 A = final amount including interest, P = principal amount, r = annual interest rate (as decimal), n = number of compounds per year, t = number of years.
What is Simple & Compound Interest Calculator
A Simple & Compound Interest Calculator is a tool used to calculate the interest earned or accrued on a principal amount over a specific period of time. It helps individuals and businesses determine the total amount of interest that will be earned or paid based on different interest calculation methods.
Here's how a Simple & Compound Interest Calculator typically works:

Principal Amount: You input the initial amount of money, also known as the principal, that is being borrowed or invested.

Interest Rate: You enter the annual interest rate or percentage at which the amount will earn or accumulate interest. This can be a fixed rate or a variable rate depending on the type of loan or investment.

Time Period: You specify the duration or time period for which the interest will be calculated. It could be in terms of years, months, or any other relevant unit.

Calculation: The calculator performs calculations based on the selected interest calculation method.

Simple Interest Calculation: The simple interest formula calculates interest based solely on the original principal amount and the interest rate. The formula is as follows:
Simple Interest = Principal x Interest Rate x Time Period

Compound Interest Calculation: The compound interest formula accounts for both the initial principal amount and the accumulated interest over time. The formula is as follows:
Compound Interest = Principal x (1 + Interest Rate)^Time Period  Principal


Displaying the Result: The calculator displays the calculated interest amount, which represents the earnings or payments associated with the principal amount over the specified time period.
By using a Simple & Compound Interest Calculator, you can better understand the financial implications of interest when borrowing money or investing funds. It enables you to compare different interest rates, time periods, and interest calculation methods to make informed decisions about loans, investments, or saving strategies.
It's important to note that the calculated interest amounts provided by the calculator are estimates and may not include additional fees, charges, or compounding frequencies that could affect the actual interest paid or earned.
When applying the results of a Simple & Compound Interest Calculator to realworld scenarios, it's advisable to consult with financial institutions, lenders, or financial advisors who can provide accurate and tailored information based on your specific circumstances.
Remember, interest rates and calculations can vary depending on the country, financial products, and regulations in place.
Simple & Compound Interest Calculator Examples
Certainly! Here's an example of a Simple & Compound Interest Calculator that utilizes a table to calculate both simple and compound interest for different investment amounts, interest rates, and time periods:
Investment Amount  Interest Rate  Time Period (years)  Simple Interest  Compound Interest 

$10,000  4%  5  $2,000  $2,168.24 
$20,000  3.5%  3  $2,100  $2,276.87 
$15,000  5%  7  $5,250  $6,381.47 
In this example, we have three different investment scenarios with the respective investment amounts, interest rates, and time periods. The calculator calculates both simple and compound interest.
To calculate simple interest, you can use the formula: Simple Interest = Investment Amount x Interest Rate x Time Period
For instance, for an investment amount of $10,000, an interest rate of 4%, and a time period of 5 years, the simple interest would be $2,000.
To calculate compound interest, you can use the formula: Compound Interest = Investment Amount x (1 + Interest Rate)^Time Period  Investment Amount
For the same scenario mentioned above, the compound interest would be approximately $2,168.24.
Similarly, you can calculate the simple and compound interest for the other investment scenarios in the table by applying the respective formulas.
Please note that this is just an example, and the actual interest calculation may involve different compounding periods (annually, quarterly, monthly), varying interest rates over time, and consideration of other factors such as fees or additional contributions.