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Compound Interest Calculator

Compound interest is a popular way for interest calculation that stands out due to its ability to magnify savings over time. The power of compounding effects results in exponential growth, allowing your money to work harder for you.

Principal Amount

Interest rate

%

1%

50%

Duration

Yrs

1 Yr

30 Yrs

Compounding Interval

Select the interval when the interest is compounded

Total Amount

Principal Amount

0

Total Interest

0

What is Compound Interest?

Compound interest refers to a situation where an investment grows at an exponential rate, as the interest earned is added to the original principal amount, creating a larger base for earning even more interest. This compounding process leads to faster and more substantial growth of investments, making it a favoured choice for long-term financial planning and wealth accumulation. To accurately determine the return on investment, it is essential to have access to a trustworthy compound interest calculator.

What is a Compound Interest Calculator?

A compound interest calculator is a tool used to calculate the interest earned on a principal amount over a specified period of time, taking into account the compounding effect of reinvesting the interest earned. This calculator takes inputs such as the initial investment, the interest rate, and the compounding frequency and provides an estimate of the total amount that will be accumulated after a given period of time. It is a simple and convenient way to understand the potential growth of an investment and make informed financial decisions.

What is the Compound Interest Formula?

The calculation of compound interest is done using the following compound interest formula:

A = P (1 + r/n) ^ nt

Where,

  • A = Compound Interest
  • p = Principal Amount
  • r = Rate of interest
  • n = Number of times interest compounds in a year
  • t = Duration in years

How to Calculate Compound Interest?

You can use the compound interest formula to calculate compound interest. Here is an example to understand the calculation of compound interest easily.

Assume you have invested ₹10,000 with an annual interest rate of 15% for 5 years, with yearly compounding frequency. The returns for the first year will be 10,000 x 15/100 = ₹1,500.

For the second year, the interest will be calculated for ₹10,000 + ₹1,500 = ₹11,500. The interest will be ₹1,725 and the investment will be ₹13,325.

For the third year, the interest amount will stand at ₹1,998.75 and so on. This way you need to calculate for the entire investment duration. Finally, the investment amount will be approximately ₹20,114 by the end of 5 years.

Let us take the same example and use the compound interest formula

A = P (1 + r/n) ^ nt,
P = ₹10,000
r = 15% = 0.15
n = 1
t = 5

A = 10,000 (1+0.15)^5
= ~₹20,113.57

Obviously, it is difficult to calculate these amounts manually or even using the formula especially when you have longer tenures. It takes time and is prone to errors easily. That is why you need a compound interest calculator online in India by Angel One to make the task easier.

How Can a Compound Interest Calculator Help You?

A compound interest calculator is a useful tool that can assist you in understanding the growth potential of your investments over time. By inputting your initial amount, the interest rate, and the time period for compounding, you can get a clear picture of how your money could multiply. This can be especially beneficial when planning long-term financial goals like retirement or education funding.


It lets you visualise the benefits of reinvesting your earnings instead of simple interest, where earnings do not earn additional interest. This insight can motivate you to start saving early, make more informed decisions about where to place your funds and help you set realistic savings targets to reach your financial aspirations.

How Does Compound Interest Calculator Work?

The working of the online compound interest calculator is simple and straightforward. The online calculator takes the basic details like the principal amount, interest rate, duration and compounding frequency into consideration and estimates the total returns in seconds without any scope for errors.

How to Use Angel One Compound Interest Calculator?

Angel One’s compound interest calculator is a user-friendly calculator that calculates the compound interest of your investment or loan in less than a minute. Follow the steps below to use the Angel One compound interest calculator.

  • Open the Angel One compound interest calculator
  • Enter the principal amount
  • Enter the interest rate
  • Enter the duration
  • Select the compounding frequency - monthly, quarterly or annually

That’s it. The online calculator will compute the given data and display the total amount along with a breakdown of the principal amount and the interest amount.

Let us use an example to understand the usage of Angel One’s online compound interest calculator.

Suppose you want to make an investment of ₹50,000 for your international vacation in the next 3 years. The interest rate of the investment is 12%, compounding yearly. Instead of breaking your head with manual calculations, use the Angel One compound interest calculator to know the approximate value of your investment after 3 years.

Enter the details in the online calculator and the calculator estimates as given below:

  • Total amount = ₹71,538
  • Principal amount = ₹50,000
  • Interest amount = ₹21,538

This means at the end of 3 years, your investment will be ₹71,538. Now that you know the approximate value of your investment in 3 years, you can check if the returns are enough for your international trip. If it is not enough, you can check if you can increase your investment amount or find an investment option that offers a higher interest rate.

This way, you can use the Angel One compound interest rate calculator and calculate compound interest returns for various scenarios before making a decision.

Benefits of using Angel One Compound Interest Calculator

Angel One's compound interest calculator online offers several advantages that can greatly assist you in your financial planning:

  • Accurate projections: Angel One's compound interest calculator uses precise mathematical formulas to provide accurate projections of how your investments may grow over time, considering both principal and compound interest. However, remember that the calculator doesn’t take market fluctuations into account.
  • Easy to use: The online compound interest calculator by Angel One is user-friendly and requires minimal input. Just enter the principal amount, interest rate, compounding frequency, and time period to instantly see the future value of your investment.
  • Customisable parameters: Using Angel One’s compound interest calculator you can experiment with different scenarios by adjusting parameters like principal amount, interest rate, duration and compounding frequency. This flexibility helps you explore how various factors impact your savings.
  • Financial planning: The online calculator by Angel One is an excellent tool for financial planning. You can use it to set goals, track progress, and strategise your savings approach to meet specific financial objectives.
  • Saves time: Instead of manual calculations, Angel One’s compound interest calculator quickly provides you with results, saving you time and potential calculation errors.
  • Comparative analysis: Using Angel One’s compound interest calculator you can compare different investment options or strategies to see which one yields better returns in the long run.
  • Realistic expectations: The compound interest calculator by Angel One gives you a realistic outlook on how compounding affects your principal amount, which can encourage disciplined saving habits.
  • Free to use: Angel One’s compound interest calculator is free to use and can be used at any time and anywhere at your convenience. You can use it at no cost for multiple scenarios. All you need is an active internet connection.

Simple Interest vs Compound Interest

Simple Interest and Compound Interest are two distinct methods for calculating interest on loans or investments.

Simple interest is a straightforward method where the interest is calculated solely on the initial principal amount over a specified time period. The interest remains constant throughout the period, and it is not added to the principal for future calculations. This makes it relatively easy to calculate and understand. However, since the interest doesn't compound, the overall growth of the investment is typically slower compared to compound interest.

On the other hand, compound interest is more dynamic and powerful. Here, the interest is not only calculated on the initial principal but also on the accumulated interest from previous periods. As a result, the interest itself starts generating interest, creating a compounding effect that accelerates growth over time. Compound interest is used in various financial instruments, like savings accounts, fixed deposits, and investments. It's especially beneficial for long-term investments, as the earnings snowball over time.

In essence, while simple interest provides a straightforward calculation, compound interest offers the advantage of exponential growth, making it a preferred choice for investors aiming for substantial returns over extended periods.

Simple Interest Formula

The formula for the simple interest calculator is as follows:

Simple interest = P X T X R / 100

Where,

  • P = Principal amount (initial investment or loan amount)
  • R = Rate of interest per year
  • T = Duration in years

Let us consider an example to calculate the simple interest.

For instance, you want to take a loan of ₹1,00,000 at an interest rate of 10% per annum for 4 years. The simple interest calculation will be as follows:

Simple interest = 1,00,000 * 10 * 4 / 100 = ₹40,000

The simple interest of your loan of ₹1,00,000 for 4 years at a 10% interest rate annually will be ₹40,000.

Compound Interest Calculator FAQs

What are the advantages of using a compound interest calculator?

A compound interest calculator helps calculate the amount of interest earned over a specific period, the total return on investment, the expected growth of the investment, both overall and annual returns, and it also considers pre-closure charges when evaluating an investment.

How does a compound interest calculator determine the amount of interest earned?

The compound interest calculator calculates the amount of interest earned by taking inputs such as the initial investment, the interest rate, and the compounding frequency and provides an estimate of the total amount that will be accumulated after a specified time period.

How does a compound interest calculator calculate expected investment growth?

A compound interest calculator calculates expected investment growth by inputting the principal amount, interest rate, and time period.

What is the difference between overall and annual returns?

Overall returns refer to the total amount of interest earned over a given time frame, while annual returns refer to the interest earned in a single year.

Should pre-closure charges be considered when evaluating an investment?

Yes, pre-closure charges should be taken into account when evaluating an investment as they can have an impact on the overall return on investment.

Why is it necessary to use an online calculator after the Indian Government updated interest rates in 2016?

After the Indian Government updated interest rates in 2016, it is important to use an online calculator to accurately calculate the returns on National Savings Certificates.

What inputs are required to use a compound interest calculator?

The inputs required to use a compound interest calculator are the initial investment, interest rate, and time period.

How can a compound interest calculator assist in making informed financial decisions?

A compound interest calculator helps make informed financial decisions by providing valuable information on the expected return on investment, such as choosing the best investment option and planning for the future.

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