Complete guide
ROAS Calculator: formula, example and decision guide
Measure advertising revenue returned for each unit of ad spend. The result updates instantly and keeps every assumption visible.
What the ROAS Calculator measures
Measure advertising revenue returned for each unit of ad spend.
Use the result to compare scenarios built from the same definitions and time period.
Formula and variables
The calculator applies ROAS = attributed revenue ÷ ad spend. Each variable is entered in a labeled field and remains visible beside the answer.
ROAS = attributed revenue ÷ ad spendWorked example
$25,000 revenue from $5,000 spend produces 5.0× ROAS.
Change one input at a time to see which assumption has the greatest effect on the result.
How to interpret the result
Read the main result together with the detailed rows; the headline number alone does not describe every cost, unit or assumption.
Save comparable scenarios with the copy, link, CSV or PDF controls.
Assumptions and limitations
Attribution rules, refunds, taxes and gross margin are not inferred; ROAS is not profit.
Real contracts, measurements, platform rules and professional standards can add inputs that this general-purpose model does not infer.
Accuracy checklist
Confirm units, time periods, fees and source figures before relying on the output.
Round the displayed answer only after the calculation; intermediate values retain full precision.
Calculation audit
| Item | What to review |
|---|---|
| Inputs | Revenue attributed to ads, Advertising spend |
| Equation | ROAS = attributed revenue ÷ ad spend |
| Example | $25,000 revenue from $5,000 spend produces 5.0× ROAS. |
| Limit | Attribution rules, refunds, taxes and gross margin are not inferred; ROAS is not profit. |
Frequently asked questions
What does this ROAS Calculator calculate?
Measure advertising revenue returned for each unit of ad spend.
Which formula does it use?
ROAS = attributed revenue ÷ ad spend
Does it calculate while I type?
Yes. Valid changes update the result automatically without reloading the page.
Which inputs should I verify?
Verify every unit, period, rate and fee against the source you are modeling.
Is the result exact?
Attribution rules, refunds, taxes and gross margin are not inferred; ROAS is not profit.
Can I save or share the result?
Yes. Copy, native sharing, WhatsApp, PDF/Print, CSV, comparison and parameterized links are available.
What to keep in mind
Attribution rules, refunds, taxes and gross margin are not inferred; ROAS is not profit.
Results display up to 8 decimal places; exported numbers preserve calculation precision. This is a calculation summary, not an official certificate.