WebLumeStudio

ROAS Calculator

Estimate whether your campaigns are profitable after ad spend, margin, and marketing costs.

Enter your campaign economics

Estimate campaign profitability by combining ad spend, attributed revenue, margin, and optional marketing costs.

How much you spend on ads each month.

Enter monthly ad spend greater than 0.

Revenue you can reasonably attribute to paid campaigns.

Enter revenue from ads as 0 or higher.

The percentage of revenue left after product or delivery costs.

Enter a gross margin greater than 0 and up to 100.

Optional: monthly agency or management fee.

Optional: monthly software, creative, or reporting cost.

Profitability estimate

Enter your ad spend, revenue, and margin to estimate campaign profitability and break-even dynamics.

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ROAS is not the same as profit

ROAS shows revenue efficiency, not final profit

ROAS can look strong while profitability still suffers if costs and margins are not accounted for.

Margins change the real story

Gross margin determines how much of attributed revenue is actually available to cover marketing and generate profit.

Fees and tools can shift break-even

Management fees and tool costs raise your effective marketing cost, which can move campaigns from profitable to break-even.

What to check before scaling spend

  • Validate attribution quality and conversion tracking.
  • Improve margin drivers like pricing, upsells, and COGS.
  • Lower CPL through better audience targeting and landing page performance.

Need help finding where profit is leaking?

We can review your paid funnel, margin assumptions, and campaign economics before you scale spend.

Find Profit Leaks

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ROAS calculator FAQs

Use these answers to understand how ROAS connects to break-even and net profitability.

ROAS (Return on Ad Spend) measures attributed revenue divided by ad spend. It shows revenue efficiency, not full profitability.