₹1,00,000 at 8% for 5 years, compounded annually
Inputs
- principal
- 100000
- interestRate
- 8
- years
- 5
- compoundsPerYear
- 1
Result
Total amount ≈ ₹1,46,932.81 and total interest ≈ ₹46,932.81.
Finance
Compound Interest Calculator
Calculate compound interest, total interest earned, and the estimated future value of an investment.
Compound Interest Calculator calculator
₹
Compound Interest Calculator
Enter the values below to calculate your result.
₹
%
years
₹
Your result will appear here
Enter the required values and click Calculate to see your result.
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How does the compound interest calculator work?
Enter the principal amount, annual interest rate, investment period, and compounding frequency. The calculator estimates the future value by applying compound growth at the selected frequency. It also shows the original principal and the total interest earned.
Formula
A = P × (1 + r/n)ⁿᵗExamples
₹1,00,000 at 8% for 5 years, compounded monthly
Inputs
- principal
- 100000
- interestRate
- 8
- years
- 5
- compoundsPerYear
- 12
Result
Total amount ≈ ₹1,48,983.57 and total interest ≈ ₹48,983.57.
₹5,00,000 at 10% for 10 years
Inputs
- principal
- 500000
- interestRate
- 10
- years
- 10
- compoundsPerYear
- 12
Result
The calculator estimates the future value and total interest using monthly compounding at the selected annual rate.
About this calculator
A compound interest calculator helps you estimate how money can grow when interest is added to the principal and future interest is calculated on the accumulated balance.
The compound interest calculation depends on four main factors: the principal amount, annual interest rate, investment period, and compounding frequency.
Compounding can increase the growth of an investment over time because previously earned interest becomes part of the balance used for future interest calculations.
The frequency of compounding can affect the final amount. For the same principal, interest rate, and investment period, more frequent compounding generally produces a higher final value.
You can use this calculator to estimate investment growth, compare different compounding frequencies, understand the effect of time on savings, and calculate potential interest earned on a fixed principal amount.
The calculated result is an estimate based on a constant interest rate and does not account for taxes, fees, deposits, withdrawals, or changes in the actual rate of return.
Frequently asked questions
What is compound interest?
Compound interest is interest calculated on the original principal as well as interest accumulated during previous compounding periods.
What is the compound interest formula?
The standard formula is A = P × (1 + r/n)ⁿᵗ, where P is the principal, r is the annual interest rate expressed as a decimal, n is the number of compounding periods per year, and t is the time in years.
What is the difference between simple and compound interest?
Simple interest is calculated only on the original principal, while compound interest also considers interest accumulated from previous periods.
Does more frequent compounding increase the final amount?
For the same principal, annual rate, and investment period, more frequent compounding generally results in a higher final amount.
How does time affect compound interest?
A longer investment period can significantly increase the effect of compounding because accumulated interest has more time to generate additional interest.
What happens if the interest rate is 0%?
If the interest rate is 0%, no interest is earned and the final amount remains equal to the original principal.
Can I use this calculator for savings and investments?
Yes. It can be used to estimate the growth of a fixed principal amount when a constant annual rate and compounding frequency are assumed.
Does compound interest include additional monthly investments?
No. This calculator estimates growth of a fixed principal amount. It does not include recurring deposits or additional contributions.
Are compound interest calculator results guaranteed?
No. The result is an estimate based on the interest rate you enter. Actual investment or savings returns may vary.
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