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Utilerio
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ROAS & Break-Even Calculator

POST/api/v1/tools/roas-break-even-calculator

Calculate ROAS and the break-even ROAS from ad spend, revenue and contribution margin.

Authentication

Requires an API key in the X-API-Key header.

Try it

POST/api/v1/tools/roas-break-even-calculator

Parameters

adSpendnumberrequired

Total ad spend.

revenuenumberrequired

Revenue generated by that ad spend.

contributionMarginPercentnumberoptional

Contribution margin before ad spend, as a percent of revenue. Default 0.

contributionPerSalenumberoptional

Optional per-sale contribution margin in currency, used to compute breakEvenCpa.

Request body

{
  "adSpend": 1000,
  "revenue": 3500,
  "contributionMarginPercent": 40
}

Response codes

  • 200Success.
  • 400Invalid request — check your body or parameters.
  • 401Missing or invalid API key.
  • 403The API key is not scoped to this endpoint.
  • 429Rate limit exceeded — retry after a short wait.

Language

cURL

Request

curl -X POST https://utilerio.com/api/v1/tools/roas-break-even-calculator \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"adSpend":1000,"revenue":3500,"contributionMarginPercent":40}'

Response

{ "roas": 3.5, "breakEvenRoas": 2.5, "isProfitable": true, "breakEvenCpa": null }