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Marketing & business

ROAS and marketing ROI calculator

Compare attributed revenue with advertising spend and include your own contribution margin before advertising.

Free & no registration Calculated in your browser
01

Your inputs

The starting values are an example.

Decimals: 12.5 · Thousands: 1,234.56. Follow the field instructions for lists.

02

Your result

Enter your values and select Calculate.

Your calculation will appear here.

Your result will include the relevant values and units.

Understand the calculation

Formula and example

How it is calculated

ROAS = revenue / advertising spend; result = revenue × contribution margin − advertising spend

Worked example

€15,000 revenue and €3,000 advertising spend give a ROAS of 5. With a 40% contribution margin, €3,000 remains after advertising.

Things to check

  • ROAS alone does not establish profit. Revenue attribution depends on your measurement method; other fixed costs are excluded.
  • Use one currency consistently. Examples use euros; the calculation works with any currency.