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COMPOUND INTEREST

Compound Interest Calculator

Calculate compound growth with monthly, quarterly, or annual compounding. Add recurring investments and see how the power of compounding builds wealth over time.

Compound Interest Calculator

Compounding Frequency

Optional SIP-like addition

Total Value

₹3,30,039

After 10 years

Interest Earned

₹2,30,039

230% of invested

Total Invested

₹1,00,000

Effective Annual Rate

12.683%

Monthly compounding

Growth Chart

Year 1Invested: ₹1,00,000₹1,12,683
Year 2Invested: ₹1,00,000₹1,26,973
Year 3Invested: ₹1,00,000₹1,43,077
Year 4Invested: ₹1,00,000₹1,61,223
Year 5Invested: ₹1,00,000₹1,81,670
Year 6Invested: ₹1,00,000₹2,04,710
Year 7Invested: ₹1,00,000₹2,30,672
Year 8Invested: ₹1,00,000₹2,59,927
Year 9Invested: ₹1,00,000₹2,92,893
Year 10Invested: ₹1,00,000₹3,30,039
Principal + Added
Interest

HOW IT WORKS

Simple steps to get your result

1

Enter Principal & Rate

Input the initial amount, annual interest rate, and time period in years.

2

Choose Compounding Frequency

Select annual, quarterly, monthly, or daily compounding to see the difference.

3

See Compound Growth

Get total maturity value, interest earned, effective rate, and year-by-year growth chart.

FAQ

Frequently asked questions

What is the power of compounding?+

Compounding means earning returns on your returns, not just on the principal. At 12% annually, ₹1 lakh becomes ₹3.1 lakh in 10 years — more than triple. At 20 years, it becomes ₹9.6 lakh. Time is the most powerful variable.

Does compounding frequency matter much?+

Yes, especially over long periods. At 10% annual rate: annual compounding → ₹2.59 lakh in 10 years. Monthly compounding → ₹2.70 lakh. Daily compounding → ₹2.72 lakh. The difference grows larger with higher rates and longer horizons.

What is the effective annual rate (EAR)?+

EAR is the actual annual return accounting for compounding within the year. A 12% rate compounded monthly has an EAR of 12.68% — because each month's interest also earns interest for the remaining months.

Why is starting early so important?+

The last few years contribute disproportionately to total wealth. Starting 10 years later at the same rate typically results in half the final corpus, because those early years of compounding are lost permanently.

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