Investment Details
Estimated Maturity Value
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Total Interest Earned
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This calculator uses standard financial formulas widely used in banking and investment planning in India.
What is Compound Interest?
Compound interest is the interest calculated on the initial principal, which also includes all of the accumulated interest from previous periods on a deposit or loan. It is often referred to as "interest on interest."
In India, compounding is a fundamental concept used in everything from bank savings accounts and Fixed Deposits (FDs) to debt mutual funds and the Public Provident Fund (PPF). The more frequently interest is compounded (e.g., quarterly vs. yearly), the faster your wealth grows. Compare this behavior with a regular SIP Calculator to understand how recurring vs one-time compounding works.
Where is compound interest used in India?
Compounding is the engine behind almost all wealth-creation products in the Indian financial market:
- Mutual Funds: Whether you invest via Lumpsum or SIP, your returns compound annually, significantly boosting long-term wealth.
- Public Provident Fund (PPF): Offers a high degree of safety with annual compounding and EEE tax status.
- Fixed Deposits (FD): Most banks in India offer quarterly compounding on FDs, which results in a higher effective yield than the nominal rate.
- EPF & NPS: These retirement-focused tools rely on decades of compounding to build a substantial pension corpus.
Best investments for compounding in India
To maximize the "Power of Compounding," you need two things: a high CAGR and time. Here are the top picks:
- Equity Mutual Funds: Historically deliver 12-15% returns over 10+ years. For example, ₹1 lakh invested for 20 years at a 12% return will grow to approximately ₹9.64 Lakhs.
- NPS (National Pension System): Ideal for retirement, allowing your corpus to grow tax-deferred for decades.
- ELSS Funds: Provides the dual benefit of tax saving under Sec 80C and equity-linked compounding.
Track your actual realized returns using our XIRR Calculator for a more accurate picture of your portfolio growth.
Compound Interest Formula
- A: Total amount (Future Value)
- P: Principal investment amount
- r: Annual interest rate (decimal)
- n: Number of times interest compounds per year
- t: Number of years the money is invested
Simple Interest vs Compound Interest
| Feature | Simple Interest | Compound Interest |
|---|---|---|
| Calculation | Only on Principal | On Principal + Accumulated Interest |
| Growth | Linear (Flat) | Exponential (Curve) |
| Usage in India | Personal loans, short term dues | Mutual Funds, FDs, PPF, Retirement Corpuses |
Frequently Asked Questions
What is compound interest?
What is the "Rule of 72"?
How to double money using compounding?
What are the best compounding investments?
Is SIP based on compounding?
What is CAGR vs compound interest?
Does compounding beat inflation?
What interest rate doubles money in 10 years?
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Disclaimer
This calculator provides mathematical estimations based on your inputs using the compound interest formula. Final returns may vary depending on tax laws (like Capital Gains Tax), expense ratios of funds, and market conditions. This is not financial advice.Last Updated: March 2026