Annual • Monthly • Quarterly • Daily Compounding
Compound Interest Calculator
Calculate how your investment grows with compound interest over time. Compare it against simple interest and see the true power of compounding for wealth creation.
Calculate Compound Interest
Simple Interest Amount
Compound Interest Amount
Total Interest Earned (CI)
Compounding Advantage
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What is Compound Interest?
Compound interest is interest earned not just on the original principal but also on the accumulated interest from previous periods. Albert Einstein reportedly called it the “eighth wonder of the world” — and for good reason.
Compound Interest Formula
A = P × (1 + r/n)⊃(n×t)
- A = Final amount
- P = Principal (initial investment)
- r = Annual interest rate (as decimal)
- n = Compounding frequency per year
- t = Time in years
Popular Investment Options Using Compound Interest in India
| Instrument | Rate | Compounding | Tax |
|---|---|---|---|
| PPF | 7.1% | Annually | Tax-free (EEE) |
| NSC | 7.7% | Annually | 80C eligible |
| FD (SBI) | 6.5%–7.1% | Quarterly | Taxable |
| RD | 6.5%–7% | Quarterly | Taxable |
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