What this tool tells you
Return on investment (ROI) tells you whether a spend was worth it. This calculator turns a cost and a return into a simple percentage so you can compare marketing spends, tools, or hires on equal footing.
How the math works
Enter the return (revenue or value generated) and the cost. The calculator subtracts cost from gain for net profit and divides by cost to produce the ROI percentage.
Frequently asked questions
What is a good ROI?
It depends on the context, but a positive ROI means you made more than you spent. Marketing campaigns often target 3:1 or higher (a 200%+ ROI) to cover overhead and risk.
How do I calculate ROI?
ROI = (gain − cost) ÷ cost × 100. For example, a $100 spend that returns $150 has an ROI of 50%.