Break-Even ROAS Calculator
Break-even ROAS is 1 divided by your gross margin. Keep 35 cents of every revenue dollar and you need 1 ÷ 0.35 = 2.86x return on ad spend just to cover the media. Below that the campaign loses money no matter how strong the ratio looks against an industry average.
Enter your margin and your ratio
Average sale value, before costs and after any discount you actually give.
Materials, labour, shipping, processing — costs that only exist because the sale happened.
Revenue divided by ad spend. Enter 4 for 4x, not 400.
Used only to turn the ratio above into a dollar figure.
Below 2.86x these campaigns lose money on media alone.
$140.00 of gross profit on every $400.00 sale.
At your actual ROAS, before overheads and fees.
Gross profit per dollar of media. Break-even here is always 1.0.
How to use this calculator
The first two boxes set your gross margin. Revenue per order is the average sale, after any discount you actually hand out. Variable cost is everything that only exists because the sale happened — materials, subcontractor labour, shipping, card processing. Leave out rent, salaries and software you would pay anyway; those belong in your target, not your break-even.
The last two boxes are optional context. Enter the ROAS you are currently getting and the spend behind it, and the calculator converts the ratio into an actual dollar figure so you can see what the campaign is contributing before overheads.
A worked example
A remodeler averages $400 a job with $260 of materials and subcontractor labour. Gross margin is 140 ÷ 400 = 35%. Break-even ROAS is 1 ÷ 0.35 = 2.86x.
They are running 4x on $5,000 of spend. That is $20,000 of revenue, $7,000 of gross profit, minus $5,000 of media — $2,000 left over, or a POAS of 1.40. Real, but thinner than the 4x headline suggests, and it disappears entirely once a $1,500 management fee and the office overhead are paid. That is the difference between clearing break-even and clearing a target.
What a good and a bad result look like
A good result is an actual ROAS sitting meaningfully above break-even — enough headroom that fees, overheads and a bad week do not push it under. As a rough guide, many businesses aim for an actual ROAS somewhere around one and a half to two times their break-even figure, which leaves a real margin rather than a rounding error. Treat that as a starting point to argue with, not a rule.
A bad result is a campaign hovering within a few tenths of break-even. At that distance normal variance in close rate, refunds or material costs decides whether the month was profitable, and nobody is actually steering. The other bad result is a break-even figure so high that no realistic campaign can reach it, which is a margin problem wearing a marketing costume — the fix is pricing or cost of delivery, not bids.
The mistake almost everyone makes
- Using net margin instead of gross. Fixed overheads exist whether the ads run or not. Loading them into break-even makes profitable campaigns look like losers.
- Forgetting discounts. The margin that matters is the one on the price customers actually pay, not the list price.
- Ignoring refunds and cancellations. Revenue that gets handed back was never revenue. Strip it out before calculating margin, or your break-even is set too low.
- Setting it once. Break-even moves the moment costs or pricing move. A margin slipping from 40% to 32% pushes break-even from 2.5x to 3.13x with no warning from the ad account.
- Applying one number to every product. A mixed catalogue or service list has a different break-even per line. Blended margin hides the items being sold at a loss.
Where to look next
If you need the plain ratio and the profit figure, the ROAS calculator handles that. If your customers buy more than once, first-order break-even is too strict — work out what a customer is really worth with the customer lifetime value calculator, then check the whole picture with the customer acquisition cost calculator.
Common questions
How do you calculate break-even ROAS?
Divide 1 by your gross margin expressed as a decimal. At a 35% margin, 1 ÷ 0.35 = 2.86, so every dollar of ad spend has to return $2.86 in revenue before the campaign covers its own media cost. At a 50% margin break-even is 2.0. At a 20% margin it is 5.0. The lower the margin, the more revenue each ad dollar has to drag back.
What is the difference between break-even ROAS and target ROAS?
Break-even is where a campaign stops losing money on media. Target is where it makes enough profit to be worth running, which is higher, because break-even ignores overheads, management fees and the cost of the person watching the account. Most businesses set a target somewhere above break-even and treat break-even as the floor below which a campaign gets paused.
Should break-even ROAS use gross margin or net margin?
Gross margin — revenue minus the direct, variable cost of delivering the sale. Net margin already has fixed overheads baked into it, and those overheads exist whether or not the campaign runs, so including them produces a break-even number that is far too high and makes profitable advertising look unprofitable. Use gross margin for the floor, then set a target above it that covers the rest.
Does break-even ROAS account for repeat purchases?
Not on its own. It assumes the only revenue from an acquired customer is the first order. Businesses with real repeat purchase or contract renewal can run below first-order break-even and still make money, because the second and third sales carry no acquisition cost. If that describes your business, calculate break-even against lifetime gross profit instead of first-order gross profit, and be honest about the retention rate you are assuming.
What is POAS?
Profit on ad spend — gross profit divided by ad spend rather than revenue divided by ad spend. Because it is already margin-adjusted, its break-even point is always 1.0 regardless of the business, which makes it easier to read than a ratio that means something different at every margin. A POAS of 1.4 means the campaign generated $1.40 of gross profit for every dollar of media.
Why does the same ROAS mean different things to different businesses?
Because ROAS is a revenue ratio and profit lives in the margin. A business keeping 60 cents on the dollar is making money at 2x. A business keeping 15 cents is losing money at 5x. This is why ROAS benchmarks copied from case studies are close to useless — the only version of the number that means anything is the one measured against your own break-even.
Should agency fees be included in break-even ROAS?
Not in the break-even calculation itself, which is a pure media-versus-margin figure, but they have to be included somewhere or the account will look profitable while the arrangement is not. The clean way is to keep break-even as the floor, then set your target ROAS high enough that the surplus covers fees, software and management with profit left over.
What if my costs go up — does break-even ROAS move?
Immediately. Break-even is entirely a function of gross margin, so a materials price increase, a supplier change or a round of discounting moves it the same day. A business that dropped from a 40% margin to a 32% margin just moved its break-even from 2.5x to 3.13x, and any campaign sitting between those two numbers quietly started losing money without anything changing in the ad account.
Keep going
Start here if you just need the ratio itself — revenue divided by ad spend, as a number and a percentage.
Free tool Customer Lifetime Value CalculatorIf customers buy more than once, your real break-even is measured against lifetime profit, not the first order.
Free tool Customer Acquisition Cost CalculatorWhat a customer costs once sales salaries and management fees are counted, not just media.
Hitting the ratio,
missing the profit?
Twenty minutes and you'll know the ROAS your margin actually requires — and whether your market can produce it.
Book a Free Call →