Calculator
Enter compound interest details
Adjust principal, rate, time period, and compounding frequency to calculate growth instantly.
₹
₹1000₹10000000
%
1 %30 %
Years
1 Years40 Years
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Estimate final amount, total interest, and effective annual rate using principal, rate, time, and compounding frequency.
Estimate final amount, total interest, and effective annual rate using principal, rate, time, and compounding frequency.
Enter principal, rate, duration, and frequency, then review the live growth result and year-wise table.
This calculator runs in your browser without accounts, backend storage, or database persistence.
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Adjust principal, rate, time period, and compounding frequency to calculate growth instantly.
Breakdown
Compare the original principal against total interest earned.
Principal amount
₹1,00,000
39%
Total interest
₹1,59,374
61%
Estimated year-wise growth based on compounding frequency.
| Period | Principal | Interest Earned | Final Amount |
|---|---|---|---|
| Year 1 | ₹1,00,000 | ₹10,000 | ₹1,10,000 |
| Year 2 | ₹1,00,000 | ₹21,000 | ₹1,21,000 |
| Year 3 | ₹1,00,000 | ₹33,100 | ₹1,33,100 |
| Year 4 | ₹1,00,000 | ₹46,410 | ₹1,46,410 |
| Year 5 | ₹1,00,000 | ₹61,051 | ₹1,61,051 |
| Year 6 | ₹1,00,000 | ₹77,156 | ₹1,77,156 |
| Year 7 | ₹1,00,000 | ₹94,872 | ₹1,94,872 |
| Year 8 | ₹1,00,000 | ₹1,14,359 | ₹2,14,359 |
| Year 9 | ₹1,00,000 | ₹1,35,795 | ₹2,35,795 |
| Year 10 | ₹1,00,000 | ₹1,59,374 | ₹2,59,374 |
Formula
Compound interest grows the balance by repeatedly adding interest to principal.
Compound interest formula
A = P(1 + r / n) ^ (n x t)
In this formula, P is principal, r is annual rate as a decimal, n is compounding periods per year, and t is time in years.
The effective annual rate shows the actual yearly growth after accounting for the selected compounding frequency.
FAQ
Clear answers for common compound interest calculation questions.
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