Compound Interest Calculator – Accurate & Free

Basic Information
Additional Contributions (Optional)
Results
Future Investment Value:
Total Interest Earned:
Initial Balance:
Total Contributions:
All-time Rate of Return (RoR):
Time Needed to Double Investment:
Year Interest Accrued Interest Balance
Month Interest Accrued Interest Balance
Summary

Make the most of compound interest
  • Start investing early.
  • Make regular contributions if possible.
  • Consider tax-efficient savings products with more frequent compounding.
  • What is compound interest? Making it work for you.
Note: This calculator is for illustrative purposes only and does not constitute financial advice. We do not offer investment opportunities or promise returns.

What is Compound Interest?

Compound interest is interest calculated on both your initial principal and the interest earned over previous periods. It helps your money grow faster compared to simple interest.

📐 Formula:

A=P(1+rn)ntA = P \left(1 + \frac{r}{n}\right)^{nt}

Where:

  • A = Final amount

  • P = Initial principal

  • r = Annual interest rate

  • n = Number of times interest is compounded per year

  • t = Time in years

How to Use the Calculator

  1. Enter your initial amount (P)

  2. Set the interest rate (%)

  3. Choose the investment duration (years)

  4. Select how often interest is compounded

  5. Click Calculate to get your result

Example:
Investing $1,000 at 5% annual interest for 10 years compounded monthly will give you a future value of around $1,647.

Features of This Compound Interest Calculator

  • Fast and free – no login required

  • Works on mobile, tablet, and desktop

  • Supports daily, monthly, quarterly, and annual compounding

  • Instant results with simple input

  • Perfect for savings, loans, and investment planning

Who Should Use This?

🔹 Students & teachers learning finance

🔹 Investors calculating growth over time

🔹 Loan and EMI planners

🔹 Retirement savers and financial advisors

Why Compound Interest Matters

Compound interest can significantly boost your savings and investments over time. The earlier you invest, the more your money can grow — thanks to the power of compounding.

Try It Now

Use the calculator above and see how your money can grow. It’s completely free and built for accuracy.

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