Investment Return Calculator
Calculate the future value of an investment based on initial principal, monthly contributions, annual return rate, and investment period.
Published by:
isCalculator Editorial Team
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How to use this tool?
This calculator estimates the future value of an investment with regular monthly contributions and compound interest.
- Enter Initial Investment ($): The starting lump sum amount (e.g., 10,000). Must be a positive number.
- Enter Monthly Contribution ($): The fixed amount you add each month (e.g., 500). Can be zero.
- Enter Annual Return Rate (%): The expected yearly interest rate (e.g., 8 for 8%). Must be a positive number.
- Enter Investment Period (Years): The total number of years you plan to invest (e.g., 10). Must be a positive integer.
- Click "Calculate": The results will appear below, showing:
- Future Investment Value: Total projected amount at the end.
- Total Contributions: Sum of your initial investment and all monthly payments.
- Total Interest Earned: The growth from compounding.
Note: The calculator uses monthly compounding (annual rate divided by 12). All monetary values are in US dollars ($). Ensure inputs are valid numbers to avoid errors.
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Frequently Asked Questions
It calculates the future value of an investment based on initial principal, monthly contributions, annual return rate, and time period assuming compound interest.
The formula is FV = P*(1+r)^n + PMT*(((1+r)^n - 1)/r), where P is initial investment, PMT is monthly contribution, r is monthly rate (annual rate/12), n is total months.
Yes, simply enter the amount in your desired currency. The result will be in the same currency unit.
