ROI Calculator
Measure return on investment for any campaign or spend.
About the ROI Calculator
Calculate return on investment free with the standard ROI formula: (revenue − cost) ÷ cost × 100. Enter what you earned and what you spent, and instantly see your ROI percentage and net profit — recalculating live as you model different scenarios. Marketers use it to compare campaigns, founders to evaluate spend, and investors to sanity-check opportunities. A 5:1 return (400% ROI) is a common marketing benchmark.
How to use the ROI Calculator
- 1Enter your revenue (or amount gained) and your investment cost.
- 2Read the result instantly — it recalculates as you type.
- 3Adjust the numbers to model different scenarios.
Frequently asked questions
How is ROI calculated?
ROI = (revenue − cost) ÷ cost × 100. It expresses your net gain as a percentage of what you spent.
What is a good marketing ROI?
A common benchmark is 5:1 (a 400% ROI), but it varies by channel and margin. Higher-margin businesses can sustain lower ratios.
Can ROI be negative?
Yes — if costs exceed revenue, ROI is negative, meaning the investment lost money. A −20% ROI means you lost 20 cents per dollar invested.