Glossary · Metrics
ROAS— what it means in affiliate marketing
Return on ad spend: revenue divided by advertising cost.
A ratio, not a margin: ROAS of 2 can still lose money once product and payment costs are counted. Platforms optimise towards it because it is the number they can see.
Related terms
| Term | Definition |
|---|---|
| ROI | Return on investment: profit as a percentage of what was spent. |
| ROMI | Return on marketing investment: the same ratio as ROI, measured on marketing cost specifically. |
| Spend | Total money put into advertising over a period. |
Entry updated 15 September 2026. All 276 terms in one page.
