Compound Interest Calculator

Discover how your investments can grow over time with the power of compounding. Start small, invest regularly, and watch your wealth multiply.

Investment Details

₹1K₹10L
₹0₹50K
1%30%
1 year30 years

Compound vs Simple Interest

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Exponential Growth
Interest earns more interest over time
Time is Key
Longer duration = greater compounding effect
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Regular Investing
Monthly contributions boost growth

Understanding Compound Interest

Compound interest is the eighth wonder of the world. He who understands it, earns it; he who doesn't, pays it.

The Power of Time

A 25-year-old investing ₹5,000 monthly at 12% until 60 will have ₹2.76 crores. Waiting 10 years to start would result in only ₹78 lakhs - that's 72% less!

Small Amounts Matter

₹10,000 monthly at 10% for 30 years grows to ₹2.27 crores. Just ₹5,000 more monthly (₹15,000) becomes ₹3.41 crores - 50% more!

Key Factors for Maximum Growth:

  • Start Early: Time is your biggest advantage in compounding
  • Invest Regularly: Consistent contributions amplify growth
  • Higher Returns: Even 1-2% more makes a huge difference long-term
  • Reinvest Earnings: Let your returns generate more returns

Frequently Asked Questions

What is compound interest?
Compound interest is the interest calculated on the initial principal and also on the accumulated interest of previous periods. It's often called 'interest on interest' and can cause wealth to grow exponentially over time.
How does compounding frequency affect returns?
The more frequently interest is compounded, the higher your returns. Monthly compounding generates more returns than yearly compounding because interest is calculated and added more frequently.
Why start investing early?
Starting early gives your money more time to compound. Even small amounts invested regularly can grow into significant wealth due to the power of compounding over long periods.
What's the Rule of 72?
The Rule of 72 is a simple way to estimate how long it will take for your investment to double. Divide 72 by your annual interest rate. For example, at 8% return, your money doubles in approximately 9 years (72 ÷ 8 = 9).