About Compound Interest Calculator
See how money grows with compound interest. Enter principal, rate, tenure, and compounding frequency for maturity value, interest earned, donut breakup, and yearly growth chart.
Compound Interest Formula
Use these standard formulas for accurate estimates:
Compound interest
A = P × (1 + r/n)n×t
Interest earned
I = A − P
Example Calculation
Example: ₹1,00,000 @ 8% for 5 years (quarterly)
| Component | Value |
|---|---|
| Principal | ₹1,00,000 |
| Interest | ₹48,595 |
| Maturity | ₹1,48,595 |
Benefits of Using This Calculator
Instant results with standard financial formulas
Clear charts and tables for better decisions
Mobile-friendly — works on any device
100% free — no signup or data stored on servers
Built for Indian investors and taxpayers
Compare scenarios side-by-side where applicable
Frequently Asked Questions
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Interest calculated on principal plus previously earned interest, so growth accelerates over time.
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More frequent compounding (monthly vs yearly) yields slightly higher maturity for the same nominal rate.
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Simple interest is calculated only on principal. Compound interest reinvests earnings and grows faster over long tenures.
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This tool models growth on investments/savings. Loan interest uses different structures—use our EMI calculator for loans.
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