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ROAS Calculator

Separate the familiar revenue-to-ad-spend ratio from the broader campaign contribution left after creative, agency and tooling costs.

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What this calculator measures

Return on ad spend divides attributed revenue by media spend. A 4.0× ROAS means four units of revenue were attributed for every unit spent on ads. That is a revenue efficiency ratio, not a profit margin: product cost, fulfilment, agency fees and campaign software can still make the campaign unprofitable.

The calculator therefore shows both classic ROAS and a wider campaign contribution after non-media costs. Attribution quality matters more than extra decimal places, so use the same attribution window and revenue definition across every comparison.

How to use the ROAS Calculator

  1. Enter media spend and revenue attributed to the campaign.
  2. Add creative, agency, software and other campaign costs.
  3. Compare classic ROAS with contribution after all recorded campaign costs.
ROAS = attributed revenue ÷ ad spend

Campaign contribution equals attributed revenue minus ad spend and other campaign costs. Break-even revenue equals total recorded campaign cost.

Worked example

A campaign with $5,000 in ad spend and $20,000 in attributed revenue has 4.0× ROAS. If creative and agency costs add $3,000, recorded campaign contribution is $12,000.

Assumptions and limitations

  • ROAS depends on the attribution model and attribution window used.
  • Revenue is not profit and does not include product or fulfilment cost here.
  • Do not compare platforms that use different conversion definitions.
  • Incrementality requires a controlled test, not only an attributed revenue report.

Related calculators

ROI CalculatorMeasure what an investment returned after both its upfront and recurring costs, then normalize the result across the time you held it.Customer Acquisition Cost CalculatorMeasure the blended sales and marketing cost required to acquire one new customer during a consistent period.Break-Even CalculatorFind the minimum whole-unit sales volume needed for contribution to cover recorded fixed costs.Profit Margin CalculatorTurn revenue and cost figures into gross and operating margin without confusing margin with markup.