Use this Google Ads ROI Calculator to estimate campaign profit, return on investment, break-even revenue, and a practical performance score before you scale your paid search budget.
A positive ROI means the campaign produced more profit than it cost. A high ROI suggests room to scale, while a low or negative ROI means costs, conversion rate, or order value need improvement.
ROI is stricter than ROAS because it includes profit costs, not only ad spend and revenue.
If ad spend is $2,000, revenue is $9,000, product cost is $2,500, and other campaign costs are $500, profit is $4,000 and ROI is 160%.
Subtract ad spend, product cost, and campaign costs from revenue, then divide the profit by total investment and multiply by 100.
Many campaigns become attractive above 150% ROI, but the right target depends on margins, repeat purchase rate, and cash flow.
Negative ROI usually means revenue is too low relative to ad spend, product cost, or conversion costs.
Break-even revenue is the sum of ad spend, product cost, and additional campaign costs.
Use ROAS to understand ad efficiency, but use ROI when you need to know actual campaign profitability.
| Metric | How to read it |
|---|---|
| 300%+ | Excellent profit efficiency and possible scaling opportunity. |
| 150% to 299% | Good campaign performance with room for optimization. |
| 50% to 149% | Average result; improve conversion rate or margin. |
| Below 50% | Needs improvement before scaling spend. |