Investment Calculator
Project the future value of your investments based on initial capital, regular contributions, expected return rate, and time horizon.
How the investment calculator Works
This tool uses the following formulas to compute results:
Future value = P(1+r)^t + PMT × [((1+r)^t − 1) / r]ROI = (Final value − Initial investment) / Initial investment × 100Annualized return = (Final / Initial)^(1/t) − 1
About Investment Calculator
Project the future value of your investments based on initial capital, regular contributions, expected return rate, and time horizon.
Use the inputs above to calculate your result instantly. Results update automatically as you type. All calculations happen in your browser, so your data is never sent to a server.
Frequently Asked Questions
What return rate should I use?
Historically, broad stock market indices have averaged around 7–10% annual returns after inflation. Conservative portfolios may use 4–6%.
Does this account for inflation?
Use a real (inflation-adjusted) return rate to see purchasing power. Nominal rates show dollar growth but not real value.
What is the difference between ROI and annualized return?
ROI shows total return as a percentage. Annualized return expresses that growth as an equivalent yearly rate, useful for comparing investments of different lengths.
Related Tools
Compound Interest Calculator
Free compound interest calculator. See how your investments grow over time with regular co…
Salary Calculator
Convert between annual, monthly, biweekly, and hourly salary. Free salary calculator with …
Tax Calculator
Free income tax calculator estimates your federal tax liability based on income and bracke…