META & INSTAGRAM ADS
Meta ROAS & break-even calculator
Turn your Ads Manager attributed revenue into the number that matters: net cash profit after product cost, processing fees, and shipping. See exactly how far you can scale before you're spending at a loss.
Campaign inputs
Live — updates as you typeResult
STABILIZEWhy blended ROAS on Meta overstates profit
Meta's default attribution window credits a purchase to an ad if the person clicked within 7 days or viewed within 1 day and later bought — the "7-day click / 1-day view" model. That window pulls in a meaningful share of sales that would have happened anyway through organic search, email, or direct type-in traffic, inflating the ROAS Ads Manager reports relative to your actual incremental lift.
The fix isn't to ignore ROAS — it's to stop treating it as a profit number. Ads Manager ROAS tells you revenue efficiency against spend; it says nothing about your cost of goods, your processing fees, or the shipping you eat on every order. Two accounts can both report a 3.5x ROAS and land in completely different places on net margin, depending on what it costs to fulfill the product being sold.
How this calculator protects your margin
This tool works backward from your real cost stack. It subtracts cost of goods sold, payment processing, and shipping from attributed revenue to find your contribution margin before ad spend, then expresses that margin as three numbers you can act on immediately:
Break-even ROAS is the return at which ad spend exactly consumes your contribution margin — net cash profit of zero. Below this line, every additional dollar of spend loses money, regardless of what the platform reports.
Target scaling ROAS is the higher bar required to hit your target net margin. This is the number to watch when deciding whether to increase daily budgets: current ROAS above this line means there's room to scale profitably; below it means scaling now would erode margin even while revenue grows.
Recalculate after every attribution model change, COGS shift, or fee renegotiation — break-even and target ROAS move whenever your underlying cost structure does, independent of anything Meta reports.
Frequently asked questions
Why does this calculator ask for revenue and spend as totals, not per-order?
Working in period totals (a week or a month of Ads Manager data) keeps the inputs identical to what's already on your reporting dashboard, so you can copy numbers directly from Meta without recalculating per-unit figures first.
What counts as "Meta Attributed Revenue"?
Use the purchase conversion value shown in Ads Manager for the account or campaign you're analyzing, under whatever attribution setting you currently report against. If you run multiple attribution windows, use the one your finance team treats as source of truth.
Should shipping include free-shipping promotions I absorb?
Yes. Include the actual carrier cost you pay, regardless of whether it was passed to the customer. If you offer free shipping as a conversion lever, that cost belongs in this field, not left out.
What does the Cut / Scale / Stabilize badge mean?
Cut appears when current ROAS is below break-even — spend is destroying cash. Stabilize means you're profitable but below your target margin threshold. Scale means current ROAS clears your target, so incremental budget is likely to add profit rather than just revenue.