Business calculator
Free Return on Ad Spend Calculator
Compare ad-attributed revenue with advertising cost as a multiple and percentage.
Return on Ad Spend Calculator
Enter values to see a focused result. Invalid or incomplete inputs remain blank rather than producing NaN or Infinity.
Understand the result
Compare ad-attributed revenue with advertising cost
Return on ad spend, or ROAS, divides revenue from ads by advertising cost. It reports the revenue multiple and percentage return relative to ad spend, but it is not net profit because other costs are excluded.
Focused formula
The result uses only the inputs relevant to this business question.
Private in your browser
Values are calculated locally and are not stored or sent anywhere.
Use the calculator
Enter the figures you already have
- 1
Add your inputs
Use the labels and period shown in the form.
- 2
Review the math
Results update as your assumptions change.
- 3
Apply the result
Use it as a planning reference for the next decision.
ROAS, ROI, and profit
ROAS isolates ad-attributed revenue and advertising cost. ROI can include broader gains and costs, while profit subtracts all relevant business costs represented by the chosen profit definition.
Read the multiple carefully
A 5x ROAS means $5 of ad-attributed revenue for each $1 of ad spend. It does not mean $5 of profit or a 500% net margin.
Worked example
$5,000 in ad-attributed revenue divided by $1,000 ad spend equals 5x, or 500% ROAS. Revenue after ad spend is $4,000 before other costs.
Frequently asked questions
Practical questions people ask about this tool
What if advertising cost is zero?
ROAS is not calculable because the formula divides by advertising cost.
Is ROAS the same as ROI?
No. ROAS focuses on ad-attributed revenue versus ad cost; ROI is a broader return measure.
Does ROAS equal profit?
No. Other costs are excluded, so the revenue remaining after ad spend is not net profit.
Related tools
Related business tools
ROI Calculator
Compare return with investment cost.
Customer Acquisition Cost Calculator
Calculate spend per new customer.
Profit Margin Calculator
Review profit relative to selling price.
Your generated document stays clean: no ads or forced watermark in the finished output. Use the tool first, then review the supporting guidance below only when you need the extra context.