ROI Calculator
Calculate return on investment instantly: initial cost, final value, profit and ROI percentage for any investment or project.
About this tool
This ROI calculator shows the profit and percentage return on any investment or project: enter what it cost and what it is worth now.
Use it for stocks, rental property, business projects, marketing campaigns or course purchases. For long investments, pair it with the annualized compound interest calculator so time is part of the comparison.
FAQ
How is ROI calculated?
ROI = (final value - initial cost) / initial cost x 100. $10,000 invested becoming $13,000 gives a 30% ROI.
What is a good ROI?
Most investors target 7-10% annualized for diversified stocks. Small business projects often need 20%+ to justify the risk.
Does ROI account for time?
No — basic ROI ignores duration. For apples-to-apples comparison, annualize it (see the compound interest calculator).