ROI Calculator
Enter the total investment cost and the gain (or current value) to find your return on investment. This calculator shows the ROI percentage and net profit — essential for evaluating business decisions, marketing campaigns, and investment opportunities.
Formula
Net Profit = Gain − Investment ROI % = (Net Profit ÷ Investment) × 100
ROI measures the efficiency of an investment. Subtract the cost from the gain to find net profit, then divide by the original investment and multiply by 100 to express it as a percentage.
Worked Examples
Frequently Asked Questions
What is a good ROI?▾
A good ROI depends on context. In the stock market, 7–10% annual ROI is considered average. For marketing campaigns, 500%+ ROI (5:1 ratio) is a common benchmark. For real estate, 8–12% is typical. Always compare ROI within the same category.
Can ROI be negative?▾
Yes. A negative ROI means you lost money — the gain was less than the investment. For example, investing $1,000 and getting back $800 gives an ROI of −20%.
What is the difference between ROI and profit margin?▾
ROI measures the return relative to the investment cost. Profit margin measures the profit relative to revenue. ROI tells you how efficiently your money was used; margin tells you how much of each sale is profit.
How do I calculate ROI on a marketing campaign?▾
Subtract the total campaign cost from the revenue it generated, then divide by the campaign cost. If a $2,000 campaign generates $10,000: ($10,000 − $2,000) ÷ $2,000 = 400% ROI.
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All calculations are for informational purposes only. They should not replace professional financial, tax, or legal advice. Always consult a qualified professional for decisions affecting your finances or business.