Marketing ROI Calculator

About this calculator

Marketing ROI measures how much profit a marketing campaign generated relative to what it cost: (revenue generated × gross margin − marketing cost) ÷ marketing cost. Multiplying revenue by gross margin first is the key step, since it converts raw revenue into actual profit contribution before comparing it against spend — crediting marketing with revenue alone would overstate its return by ignoring the cost of goods or services delivered.

Marketing teams and CMOs use ROI to compare channels and campaigns on equal footing, justify budget allocation to finance, and decide where to scale spend versus where to cut it. This calculator takes the revenue a campaign generated, your gross margin, and the marketing cost to compute marketing ROI as a ratio or percentage.