ROI Calculator Hub

Paid ads calculator

ROAS & Break-Even ROAS Calculator

Go beyond revenue ROAS with margin-aware profit and break-even calculations.

Reviewed Jul 22, 2026

By the ROI Calculator Hub editorial team

Your assumptions

Estimated result

Revenue ROAS

4:1

Every unit of ad spend generated 4:1 units of attributed revenue.

Decision check: Positive estimated return

Contribution profit
$6,000
Campaign ROI
100%
Break-even ROAS
1.67:1

Three-case comparison

Downside applies an unfavorable 10% change to key drivers. Upside applies a favorable change.

CaseRevenue ROAS
Downside3.27:1
Current4:1
Upside4.89:1

Sensitivity check

Estimated primary-result improvement from a favorable 10% change in one driver.

  • Attributed revenue+10.0%
  • Gross margin+0.0%
  • Ad spend+11.1%
  • Other campaign costs+0.0%
Export this scenario

Your inputs stay in this browser and are not sent to our servers.

Decision scope

What this calculator answers

ROAS is a top-line efficiency metric: it shows how much attributed revenue advertising produces per unit of media spend. It does not prove the campaign is profitable. This calculator therefore adds gross margin and non-media costs, allowing you to compare headline ROAS with contribution profit, campaign ROI, and the minimum ROAS required to cover product costs.

Transparent math

How the calculation works

ROAS = Attributed revenue ÷ Ad spend; Break-even ROAS = 1 ÷ Gross margin

Revenue ROAS divides attributed revenue by ad spend. Contribution profit applies gross margin to revenue, then subtracts ad spend and other campaign costs. Campaign ROI divides that contribution profit by total campaign cost. Break-even ROAS is the reciprocal of gross margin before additional campaign costs; your practical target should be higher when agency, creative, returns, or overhead are material.

Worked example

Put the result in context

A campaign spends $5,000 and generates $20,000 in attributed revenue, producing a 4:1 ROAS. At a 60% gross margin, the revenue contributes $12,000 before marketing. After $5,000 of media and $1,000 of other costs, contribution profit is $6,000 and campaign ROI is 100%. The same 4:1 ROAS would be far less attractive for a business with a 25% margin.

Methodology

Make the estimate defensible

  • 01Use attributed revenue from one documented attribution model and window.
  • 02Use contribution margin when variable fulfillment and transaction costs are available.
  • 03Evaluate marginal ROAS at higher spend levels, not only blended account ROAS.

Interpretation

What counts as a good result?

A viable ROAS target must be derived from unit economics rather than copied from another advertiser. Start with gross margin, then add payment fees, refunds, fulfillment, agency costs, and the profit level required to fund growth. Compare reported platform ROAS with an analytics or finance source of truth before changing budgets.

Read before deciding

Limitations

  • Platform attribution may count conversions that other channels also influenced.
  • The break-even output excludes fixed overhead unless entered as other campaign costs.
  • ROAS does not capture customer lifetime value beyond the revenue entered.

How this calculator is reviewed

We test the formula against worked examples, document which costs belong in the model, and state where attribution or timing can distort the result. Read our calculation and editorial methodology.

Common questions

Frequently asked questions

Is 4:1 ROAS profitable?

It depends on margin and non-media costs. At a 60% gross margin, 4:1 may be healthy; at a 20% margin, product cost alone consumes 80% of revenue and 4:1 can be below break-even.

What is the difference between ROAS and ROI?

ROAS divides revenue by ad spend. ROI measures profit after relevant costs relative to total cost. ROAS is useful for media efficiency; ROI is better for profitability.

Should agency and creative fees be included?

Include them when judging campaign profitability. Excluding them may be useful for an in-platform media comparison, but label that result clearly.

Why can higher spend reduce ROAS?

As budgets expand, campaigns often reach less responsive audiences or more expensive auctions. Total profit can still increase even when average ROAS falls.

Sources and further reading

Continue the analysis