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Compound Interest Calculator

Investment

Visualize the power of compounding. Calculate future value, total interest, and see how your money grows over time.

Calculator Inputs

Live Calculation
₹ 1K ₹ 1Cr
%
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Yr
1 Yr 50 Yrs
Total Future Value info
₹ 0
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Principal Amount
₹ 0
Total Interest Earned
₹ 0

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Formula Details

How the math works

Systematic Investment Plan (SIP) returns are computed using the Future Value of an Annuity Due formula, taking compounding into account.

FV = P × [((1 + i)^n - 1) / i] × (1 + i)

FV

Future Value of the total accumulated wealth

P

Monthly investment amount

i

Periodic interest rate (Annual Rate / 12 / 100)

n

Total number of monthly contributions (Years × 12)

Reference Deck

Standard Benchmarks

Sample projections under common configurations.

Scenario Short-Term Medium-Term Long-Term
₹5,000 Monthly SIP (12% CAGR) 3 Years: ₹2.17 Lakhs 5 Years: ₹4.12 Lakhs 10 Years: ₹11.61 Lakhs
₹10,000 Monthly SIP (12% CAGR) 3 Years: ₹4.34 Lakhs 5 Years: ₹8.24 Lakhs 10 Years: ₹23.23 Lakhs
₹15,000 Monthly SIP (15% CAGR) 3 Years: ₹6.85 Lakhs 5 Years: ₹13.45 Lakhs 10 Years: ₹41.79 Lakhs

FAQs

Compliance & Calculations

How is the compound return calculated on a monthly basis? expand_more

Unlike simple interest, SIP compound returns are calculated on a monthly compounding frequency. Every month's contribution gains interest over the remaining horizon, accumulating exponentially.

Is mutual fund SIP wealth taxable in India? expand_more

Yes, equity mutual fund returns are taxed based on the holding period. Short-Term Capital Gains (STCG) under 1 year are taxed at 20%, while Long-Term Capital Gains (LTCG) over 1 year are taxed at 12.5% on gains exceeding ₹1.25 Lakhs per financial year.

Can I increase my monthly SIP amount dynamically? expand_more

Yes, you can use a Step-Up SIP where you increase your monthly contribution by a fixed percentage (typically 10%) every year to double your final accumulated wealth.

Understanding Compound Interest

Albert Einstein is reputed to have said, "Compound interest is the eighth wonder of the world. He who understands it, earns it; he who doesn't, pays it."

The Formula

A = P (1 + r/n) ^ (nt)
  • A = Final Amount (Principal + Interest)
  • P = Principal amount (the initial amount you borrow or deposit)
  • r = Annual interest rate (in decimal)
  • n = Number of times interest is compounded per year
  • t = Number of years the amount is deposited or borrowed for