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Compound Interest Calculator

Compound interest calculator — project savings and investment growth with flexible compounding frequency.

About this tool

The Compound Interest Calculator projects how savings or investments grow when interest earns interest over time. Unlike simple interest, compounding accelerates long-term growth — making it essential for retirement planning, fixed deposits, savings goals, and comparing investment products. Enter your principal, rate, compounding frequency, and duration, then click Calculate to see projected final value and total gains. For regular monthly contributions rather than a lump sum, use the SIP calculator. For non-compounding scenarios, try the simple interest calculator.

How to Use This Tool

  1. Enter the principal investment amount.
  2. Enter the interest rate.
  3. Choose the compounding frequency (annual, monthly or daily).
  4. Enter the number of years.
  5. Click Calculate to view your investment growth.

Frequently Asked Questions

What is compound interest?
Compound interest is the interest calculated on the initial principal plus accumulated interest from previous periods.
Does this tool support monthly and yearly compounding?
Yes, you can choose annual, monthly or even daily compounding for accurate growth projections.
Does it include additional deposits over time?
This calculator focuses on compounding growth based on the inputs provided. If you invest regularly, a SIP or recurring deposit calculator may be more suitable.

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