ROI Calculator
Calculate return on investment and annualized ROI from cost and gain.
Investment Details
Investment Gain:
ROI:
Annualized ROI:
ROI vs. annualized ROI
ROI = (amount returned − amount invested) ÷ amount invested — a simple total-return percentage that doesn't account for how long the money was invested. Annualized ROI converts that total return into an equivalent steady yearly rate (similar to CAGR), which makes it possible to fairly compare investments held for different lengths of time.
Frequently asked questions
Why does a 100% ROI over 10 years look so different annualized? Because that gain compounded gradually over a decade rather than all at once — spread evenly, it works out to roughly 7.2% per year, which is a much more modest-sounding (and comparable) figure than "100% total."
Does ROI account for fees, taxes, or inflation? No — this is a simple gross return calculation based only on the amount invested and amount returned that you enter. Subtract any fees or taxes from the returned amount first if you want a net figure.
Can ROI be negative? Yes — if the amount returned is less than the amount invested, both ROI and annualized ROI will be negative, reflecting a loss on the investment.