Investment Calculator
Calculate the future value of an investment based on initial amount, monthly contribution, annual interest rate, and investment period.
Published by:
isCalculator Editorial Team
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How to use this tool?
Follow these steps to use the Investment Calculator:
- Enter Initial Amount ($): The starting lump sum you invest (e.g., 1000). Must be 0 or greater.
- Enter Monthly Contribution ($): How much you add each month (e.g., 100). Must be 0 or greater.
- Enter Annual Interest Rate (%): The yearly return rate (e.g., 7 for 7%). Must be between 0 and 100.
- Enter Investment Period (Years): How long you plan to invest (e.g., 10). Must be at least 1 year.
- Click Calculate to see results.
Results:
- Future Value: Total amount after compounding interest and monthly contributions.
- Total Contributions: Sum of your initial amount plus all monthly payments.
- Total Interest Earned: Profit from interest (Future Value minus Total Contributions).
Note: Interest compounds monthly. All monetary values are in US dollars ($).
Previous Results
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Frequently Asked Questions
The future value is calculated using the compound interest formula with monthly contributions: FV = P*(1+r/n)^(nt) + PMT*[((1+r/n)^(nt)-1)/(r/n)], where P is initial amount, PMT is monthly contribution, r is annual rate, n is compounding periods per year (12), and t is years.
Yes, the calculator uses numeric values. Simply enter amounts in your desired currency (e.g., dollars, euros) and the result will be in the same unit.
If the annual interest rate is 0%, the future value equals the sum of initial amount plus total contributions (monthly contribution times number of months).
