Calculator
Compound Interest
Calculator
How your money grows when interest earns interest — at any rate, tenure and compounding frequency.
Your deposit
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Maturity
Maturity value
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Principal₹0
Total interest₹0
Maturity value₹0
Assumes a fixed rate for the full tenure.
How compounding works
Compound interest is interest earned on both your principal and the interest already accrued. The formula is A = P × (1 + r/n)^(n×t) — the more frequently it compounds (higher n), the faster it grows. Over long horizons, the difference between simple and compound interest is dramatic; it's why time in the market beats timing the market.
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