Compound Interest Calculator
See how your money grows with the power of compounding over time.
₹
₹1,000₹2,00,00,000
%
1%20%
yr
1 yr40 yr
Future value
₹2,15,892
Principal
₹1,00,000
Interest earned
₹1,15,892
₹1,00,000 compounding annually at 8% grows to ₹2,15,892 in 10 years.
Year-wise growth
| Year | Principal | Future value |
|---|---|---|
| 1 | ₹1,00,000 | ₹1,08,000 |
| 2 | ₹1,00,000 | ₹1,16,640 |
| 3 | ₹1,00,000 | ₹1,25,971 |
| 4 | ₹1,00,000 | ₹1,36,049 |
| 5 | ₹1,00,000 | ₹1,46,933 |
| 6 | ₹1,00,000 | ₹1,58,687 |
| 7 | ₹1,00,000 | ₹1,71,382 |
| 8 | ₹1,00,000 | ₹1,85,093 |
| 9 | ₹1,00,000 | ₹1,99,900 |
| 10 | ₹1,00,000 | ₹2,15,892 |
How this calculator works
Compound interest is calculated using A = P × (1 + r/n)^(nt), where P is the principal, r is the annual interest rate, n is the number of times interest compounds per year, and t is time in years. This is the fundamental formula behind nearly every growth calculation in finance.
Worked example: ₹1,00,000 compounding annually at 8% for 10 years grows to approximately ₹2,15,892 — more than doubling, purely from compound growth on a one-time deposit.
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