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Compound Interest Calculator

(See how compounding grows your investment)

A compound interest calculator is a smart and handy tool that helps you understand how your money can grow over time, thanks to the power of compounding. This online compound interest calculator can give you instant results in just a few clicks, whether you are saving for retirement,... planning a big purchase, or exploring investment plans. Simply input your principal amount, interest rate, and time period, and the tool will calculate compound interest online to show your potential earnings. Start using the compounding calculator today to make smarter financial decisions and maximize your returns effortlessly! Read more

Amount You Would Like To Invest?

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₹ 10
₹ 1 Cr

Number Of Years You Want To Invest?

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Year
30 Years

Number Of Years Stay Invested For?

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Year
50 Years

Years you want to Invest cannot be less than Stay Invested

Expected Interest Rate (P.A.)

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30 %

You may get
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If you invest ₹  for
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Invest Now
Did You Know

Even small amounts invested regularly can grow significantly over time thanks to the magic of compounding. Start early, even with a small contribution to your ULIP, and watch your investment potentially flourish.

Learn More

What is Compound Interest?

Compound interest is a concept in finance where interest is not only calculated on the initial principal but also the accumulated interest from previous periods. This compounding effect leads to exponential growth of your money over time. Unlike simple interest, where interest is calculated only on the principal amount, compound interest allows your investment or savings to grow at an accelerating rate. It is a powerful tool for building wealth and achieving long-term financial goals.

How Can a Compounding Calculator Help You?

A compound interest calculator tells you exactly how much your investment will grow, based on how much you put in, the interest rate, and how long you leave it untouched. Whether you are using a daily compound interest calculator or a monthly compound interest calculator, the idea is the same: it helps you plan better, invest smarter, and understand the real power of compounding.

  • It gives you accurate numbers for your future returns based on the amount, interest rate, and time period you enter.
  • It helps you figure out how much money you need to invest now to reach a specific goal in the future.
  • Many online tools, like a compound rate of interest calculator, allow you to customize the input so you can plan according to your needs.
  • It can show both the total returns and yearly growth, which is helpful if you are thinking of withdrawing or reinvesting in between.
  • If you are investing in savings schemes like NSC (National Savings Certificate), which now use annualized interest (as updated by the government in 2016), this tool helps you stay updated with accurate returns.
  • Whether you are planning short-term investment goals or long-term ones, this calculator saves time and removes guesswork from financial planning.
  • Instead of manually calculating compound interest, the tool provides quick and accurate results.
  • If you need to withdraw funds early, the calculator can help you assess how much you will have earned up to that point.
  • For government-backed savings schemes, such as National Savings Certificates, you can use the calculator to understand how your savings will grow under the latest interest rates.

Compound Interest Formula & Steps to Calculate Compound Interest

As we already discussed, compound interest helps your money grow faster by earning interest not only on the amount you invested, but also on the interest that you have already earned. To get the calculator compound interest rate, you need these four basic details:

  • Principal Amount: The initial money that you invest
  • Interest Rate: The rate at which your money earns interest
  • Compounding Frequency: How often the interest is added (yearly, monthly, etc.)
  • Time Period: How long you intend to keep the money invested

Once you know these things, you can use the power of compounding calculation to estimate how much your money will grow.


Now, let us take a look at the compound interest formula:

  • A = P (1 + R / n) ^ (nT)

    Where:

    1. A = Future value of the investment
    2. P= Principal amount
    3. R= Interest rate (as a decimal)
    4. n= Number of compounding periods per year
    5. T= Time period (in years)

This interest calculator performs the necessary calculations based on the above formula. It takes into account the principal amount, interest rate, compounding frequency, and investment duration to assess the total amount you will have at the end, including the accumulated interest.

Here is a simple example of the same:


You invest ₹20,000 in a bank account that gives 6% interest per year, and the interest is compounded annually. You plan to keep the money invested for 5 years. Then:

  1. A P = ₹20,000
  2. Pr = 0.06
  3. Rn = 1 (yearly compounding)
  4. nT = 5

Using the formula:

A = 20000 (1 + 0.06/1) ^ (5) = ₹26,764

Total Interest Earned = A - P = ₹26,764 - ₹20,000 = ₹6,764

How to Use the Compound Interest Calculator Online?

Using a compound interest calculator India online is an easy process. The following are the general steps to use it:

  • Step 1: Search for a Compound Interest Calculator

    There are many reputable financial websites and online tools that offer such interest calculators. You can find them simply by searching on the internet browser.

  • Step 2: Input your Values

    Once you have chosen an interest calculator, you will typically see input fields for the following:

    • Principal amount: This is the initial amount of money you are investing.
    • Interest rate: Enter the annual interest rate offered on the investment (as a decimal). If it is a percentage, convert it (e.g., 5% becomes 0.05).
    • Time period: Specify the total duration of your investment in years.
    • Compounding frequency: Select how often the interest is compounded (annually, monthly, etc.). Some calculators may offer a default option.
  • Step 3: Calculate

    Once you have entered all the necessary information, click the "calculate" button or similar option.

  • Step 4: View the Results

    The interest calculator will display the future value (A), which represents the total amount you will have in your investment after the specified time period, considering compound interest. Some calculators might also show you the total compound interest earned over the investment period or the breakdown of the year-by-year growth of your investment (optional).

Compounding works best when investments also secure your future

Benefits of Using Compound Interest Calculator

Now that you know how a compound interest rate calculator works, let us take a look at why using this tool is a smart move for anyone, whether you are a student, working adult, or retired.

  • User-Friendly Interface

    These interest calculators offer a user-friendly interface, making financial planning and decision-making more accessible for everyone. You do not need to be numerical except to figure out your returns. Just enter the values, and you can easily calculate compound interest without any confusion.

  • Accurate Calculations

    One of the biggest advantages of using a compound rate calculator is its accuracy. Manual calculations can go wrong, but calculators give you accurate results every time. This is important because even small mistakes in your calculations can have a big impact on your investment returns over time.

  • Time-saving

    Calculating compound interest manually can be a time-consuming process, especially if you are dealing with multiple investment accounts or different compounding periods. A calculator can save you a lot of time and effort by automating the calculations. You can enter your data into the calculator and let it do the work for you.

  • Visualize Results

    Another benefit of using such an interest calculator is that it can show you how much your investment will be worth in the future based on different interest rates and compounding periods. This can help you make more informed investment decisions and plan for your financial future.

  • Reliability

    These interest calculators are reliable tools that accurately calculate compound interest based on the provided data. These tools use trusted formulas, so the results are always dependable. You can count on them for correct numbers based on your inputs.

  • Data Security

    Such interest calculators are designed with robust security measures to safeguard the data you input. You can input your financial data into these interest calculators with confidence, knowing that your information is safe and secure.

Difference Between Simple Interest and Compound Interest Calculation

Simple interest is computed solely based on the initial amount of the loan or investment, whereas compound interest is calculated based on the original amount plus any accumulated interest. Below is a simple comparison between simple and compound interest for better understanding.

Feature Simple Interest Compound Interest
Basis for Calculation Principal amount only Principal amount + accumulated interest
Formula SI = (P x R x T) / 100 A = P ( 1 + R/n )^(n x T)
Growth Linear Exponential
Principal amount Remains constant throughout the term Grows over time due to accumulated interest
Interest on Interest No Yes
Returns Interest earned only on the initial principal Interest earned on both the initial principal and previously accumulated interest ("interest on interest")
Applications Short-term loans, some bonds Savings accounts, long-term investments

Wrapping Up

Whether you are looking for a 5 years investment plan , a 1 crore investment plan, or any other long term investments, using an online compound interest calculator makes financial planning easier. It helps you maximize your savings and ensure financial security. You can also use it as a retirement calculator to understand how much you need to invest today for a comfortable future.


Understanding how to calculate compound interest online will empower you to make informed investment choices. Start using a compound interest calculator today and take control of your financial future!

FAQs on Compound Interest Calculator

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