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Compound Interest Calculator

Calculate Growth with Compounding & Contributions

Calculate compound interest with additional contributions, charts, and year-by-year tables. Free, privacy-friendly, and easy to use!

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Start Calculating

Compound Interest Calculator

Compound Interest Calculator Form

How to Use the Compound Interest Calculator

  1. Enter your Principal Amount (the initial investment or loan amount).
  2. Input the Annual Interest Rate (as a percentage, e.g., 7.5).
  3. Specify the Time in years for which you want to calculate compound interest.
  4. Set the Compounds per Year (e.g., 12 for monthly, 4 for quarterly, 1 for yearly).
  5. Optionally, add Additional Contributions and select their frequency (monthly or yearly).
  6. Click Calculate to see your total amount, interest earned, and a year-by-year breakdown.
  7. Use the Reset button to clear all fields and start over.
  8. For more financial tools, try our FD Calculator, EMI Calculator, or RD Calculator.
  9. Learn about Chronological Age Calculation or Age Difference Calculation.
  10. Read our blog: Why Know Your Age? and How Age is Calculated.

Frequently Asked Questions about Compound Interest

What is compound interest?

Compound interest is the interest calculated on the initial principal and also on the accumulated interest from previous periods. It helps your money grow faster compared to simple interest, making it a powerful tool for savings and investments.

Related: Compound Interest Calculator | FD Calculator | EMI Calculator

How do you calculate compound interest?

The formula for compound interest is: A = P(1 + r/n)nt, where P is the principal, r is the annual interest rate, n is the number of times interest is compounded per year, and t is the number of years.

See also: Percentage Calculator | RD Calculator

Why use an online compound interest calculator?

An online compound interest calculator saves time and reduces errors. It allows you to quickly estimate your future savings or loan costs, visualize growth with charts, and compare different scenarios.

Try our Loan Eligibility Calculator or Retirement Corpus Calculator.

What are common uses for compound interest?

Compound interest is commonly used in savings accounts, fixed deposits, retirement planning, education funds, and loan calculations. It is essential for anyone looking to maximize returns or understand borrowing costs.

Explore: SIP Calculator | FD Calculator

How can I maximize compound interest?

To maximize compound interest, invest early, contribute regularly, choose higher compounding frequencies, and seek competitive interest rates. Use our calculator to experiment with different values and see the impact over time.

Learn more: Why Know Your Age? | How Age is Calculated