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Marketing calculator

Marketing ROI Calculator

Marketing ROI, sometimes called ROMI, estimates the profit generated by marketing relative to its full cost. Revenue alone can make low-margin campaigns look attractive, so this calculator converts attributed revenue into gross profit before subtracting marketing expense. Use it for a campaign, channel, region, or reporting period with a consistent attribution method.

Reviewed Jul 22, 2026

Your assumptions

Estimated result

Marketing ROI

116.7%

Marketing generated 3.33:1 times its cost in attributed revenue.

Net marketing return
$35,000
Revenue-to-cost ratio
3.33:1
Break-even revenue
$46,154

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Transparent math

How the calculation works

Marketing ROI = (Attributed revenue × Gross margin − Marketing cost) ÷ Marketing cost × 100

Attributed revenue is multiplied by gross margin to estimate the amount available to pay for marketing. Total marketing cost is then subtracted to calculate net return. Dividing net return by marketing cost produces ROI. Break-even revenue shows the revenue required for gross profit to equal marketing cost.

Worked example

Put the result in context

A quarterly program is credited with $100,000 of revenue at a 65% gross margin and costs $30,000 across media, content, tools, and labor. Estimated gross profit is $65,000, net marketing return is $35,000, and marketing ROI is 116.7%. The revenue-to-cost ratio is 3.33:1, which is not the same as ROI.

Methodology

Make the estimate defensible

  • 01Choose one attribution approach and state the lookback window.
  • 02Include internal labor and shared tools when comparing marketing with other investments.
  • 03Use incremental lift when an experiment or holdout is available.

Interpretation

What counts as a good result?

The right target depends on growth stage, sales cycle, payback requirements, and whether repeat purchases are included. Finance and marketing should agree on attribution, margin, and cost scope before setting a threshold. Track both short-term cash payback and longer-term customer value when acquisition economics justify it.

Read before deciding

Limitations

  • Attribution is an estimate and may differ across analytics, ad platforms, and CRM reports.
  • Brand effects and future organic demand may not appear inside a short reporting window.
  • Customer lifetime value should only be included when retention assumptions are supported.

Common questions

Frequently asked questions

Should marketing ROI use revenue or gross profit?

Gross profit is usually more decision-useful because revenue does not account for the cost of delivering the product or service.

What marketing costs should be included?

Include the costs necessary to create and run the program: media, agencies, creative, software, events, discounts, and attributable employee time.

How should brand marketing be measured?

Use experiments, geographic holdouts, brand-lift studies, search trends, or modeled incremental revenue. A last-click revenue report is rarely sufficient for brand investment.

Is marketing ROI the same as ROAS?

No. ROAS compares revenue with ad spend only. Marketing ROI compares profit with a broader set of marketing costs.

Sources and further reading

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