An investment calculator projects portfolio growth from an initial amount and recurring contributions, showing how compounding builds wealth over time.
An investment calculator projects portfolio growth from an initial amount and recurring contributions, showing how compounding builds wealth over time. Our investment calculator is built on the same core investment growth calculator stock calculator investment return calculator and is trusted by students, professionals and everyday users who need a fast, accurate result. Because every calculation runs locally in your browser, there is no waiting, no sign-up and no limit on how often you use it.
Projecting Long-Term Stock Market Returns
Historical S&P 500 annualized nominal returns average ~10% (~7% inflation-adjusted) over multi-decade periods.
The Rule of 72 for Investment Doubling
Divide 72 by your expected annual return percentage to estimate how many years it takes for your investment portfolio to double.
Impact of Management Fees and Expense Ratios
Low-cost index funds with expense ratios under 0.10% retain significantly more compounding wealth than high-fee actively managed funds.
People Also Search For
100% Free, Instant & Private. All computations run directly in your browser sandbox without sending personal data to any external server.