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About this tool
Return on investment as a percentage from the amount invested and the amount returned.
The ROI Calculator works out return on investment as a percentage using ROI = ((amount returned − amount invested) ÷ amount invested) × 100. Enter what you put in and what came back, and it reports the ROI percentage, the net profit or loss, the return multiple (returned ÷ invested) and the profit margin measured against the amount returned. It is built for anyone settling whether a spend actually paid for itself — a campaign, a side project, a resale, a piece of equipment.
Open ROI Calculator on AltFTool — it loads instantly in your browser.
Type the Amount Invested in the Inputs panel - it starts at 5000.
Type the Amount Returned; the Result panel recomputes as you type, with no Calculate button to press.
Read the headline such as '50.00% ROI' captioned Profit, Loss or Break-even, plus the Net Profit / Loss, Return Multiple and Profit Margin cards - the Copy button takes the whole breakdown.
Shows net profit or loss alongside the percentage, so a big-sounding return on a large outlay is immediately visible for what it is.
Reports returned ÷ invested as a multiple (2.00× for a doubling), the form investors and pitch decks usually ask for.
Marks the result as Profit, Loss or Break-even, and handles a negative ROI without hiding the minus sign.
ROI = ((amount returned − amount invested) ÷ amount invested) × 100. Investing 5,000 and getting back 7,500 gives a profit of 2,500, so ROI is (2,500 ÷ 5,000) × 100 = 50%. The calculator applies exactly this formula and also shows the 1.50× return multiple.
There is no universal figure — it depends on the risk, the time taken and what else you could have done with the money. A 50% ROI earned over five years is far weaker than the same 50% in three months, because this formula ignores time entirely. Compare against a realistic alternative use of the same cash before calling a number good.
ROI divides profit by the amount invested, while profit margin divides profit by the amount returned. On a 5,000 investment returning 7,500, ROI is 50% but profit margin is 2,500 ÷ 7,500 = 33.33%. The calculator shows both so the two are not confused.
No — this is simple ROI, not an annualised figure, so a 40% return over one year and over four years both read as 40%. For time-adjusted comparison you would need an annualised return or IRR. This tool is informational; for investment decisions of any size, speak to a licensed financial adviser.
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