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About this tool
See how your money grows with compound interest across daily, monthly, quarterly, half-yearly, and yearly compounding frequencies.
This compound interest calculator applies the standard formula A = P(1 + r/n)^(nt), where n is 365 for daily, 12 for monthly, 4 for quarterly, 2 for half-yearly and 1 for yearly compounding, and reports the maturity amount, the interest portion and a year-by-year balance table in rupees. Savers comparing a fixed deposit against a recurring alternative can see exactly how much of the final figure is interest rather than principal. It models a single lump sum with no further deposits and no tax deducted.
Open Compound Interest Calculator on AltFTool — it loads instantly in your browser.
Enter the Principal Amount in ₹, the Annual Interest Rate (% p.a.) and the Time Period (Years). All three are required — leaving one blank flags it in red with 'Principal Amount is required' and a negative value with 'must be at least 0'.
Pick Daily, Monthly, Quarterly, Half-Yearly or Yearly from the Compounding Frequency dropdown and press Calculate. The circular-arrow button beside it restores the defaults — ₹100,000 at 8% for 10 years, compounded monthly — and clears the result.
The panel swaps 'Enter your details and click Calculate to see results' for the Total Amount, with Total Interest underneath; open Year-by-Year Breakdown for a scrollable Year / Invested / Interest / Balance table with one row per year.
Switching between daily, monthly, quarterly, half-yearly and yearly re-runs the same principal and rate, so the frequency effect is isolated instead of guessed at.
The result separates total maturity value from the interest earned, which is the number that matters when you are comparing against an alternative use of the money.
Every year from one to the end of the term is listed with its closing balance and cumulative interest, so you can see the point where interest overtakes what you put in.
A = P(1 + r/n)^(nt): principal times one plus the annual rate divided by compounding periods per year, raised to periods per year times the number of years. The rate you type as 8 is used as 0.08, and n is set by the frequency you pick.
Less than most people expect at ordinary rates. ₹1,00,000 at 8% for 10 years matures at about ₹2,15,892 compounded yearly and about ₹2,22,535 compounded daily — roughly ₹6,600, or a little over 3%, between the two extremes.
No. It compounds one opening principal for the whole term and adds nothing along the way, which matches a fixed deposit or a one-time investment. For a monthly contribution plan you need a recurring deposit or SIP calculation instead, since those use a future-value-of-annuity formula.
The figures are gross, with no tax, TDS or inflation deducted, so your actual credit will be lower. Interest on bank deposits is generally taxable as income in India, and banks deduct TDS above the prescribed annual threshold — check the current limit and your own slab with a tax professional before relying on the net figure.
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