Key takeaways
- ROAS = revenue ÷ ad spend, shown as a multiple like 4×.
- Break-even ROAS = 1 ÷ profit margin. No margin → break-even is 1×; a 50% margin needs 2× just to break even.
- Profit = revenue × margin − spend. ROAS measures revenue, profit measures what you keep.
- Clearing your break-even target means a profitable campaign; falling below it means a loss, so the verdict reflects your margin.
What is ROAS, and what's a good one?
ROAS — return on ad spend — is the simplest way to judge a paid campaign: how many dollars of revenue each ad dollar brought back. Divide attributed revenue by ad spend and you get a multiple. A 4× ROAS is a common e-commerce benchmark, but "good" is really a function of your profit margin. Revenue isn't profit: if you keep only 25 cents of every revenue dollar, a 3× ROAS still loses money. That's why this calculator lets you enter a margin and moves the break-even line accordingly.
With margin left at 100%, break-even is 1× — you just want to make back what you spent. Drop margin to 40% and break-even rises to 2.5×; anything below that is unprofitable even if the raw ROAS looks fine. We score ROAS on a 0–5× scale and flag it as on target once you clear your goal (break-even × 1.5, or simply ≥1× when no margin is set).
Worked example: $1,000 spend, $4,000 revenue
ROAS = $4,000 ÷ $1,000 = 4×. At a 100% margin, profit = $4,000 − $1,000 = $3,000 and break-even is 1×, so 4× is comfortably profitable. Now set a realistic 50% margin: break-even jumps to 2× and profit = $4,000 × 0.5 − $1,000 = $1,000. Still profitable, but the picture is honest — half the revenue was cost of goods.
Break-even ROAS by profit margin
| Profit margin | Break-even ROAS | Read |
|---|---|---|
| 100% (digital, no COGS) | 1.0× | Recoup spend = profitable |
| 70% | ~1.4× | High-margin product |
| 50% | 2.0× | Common services / SaaS |
| 40% | 2.5× | Typical retail |
| 25% | 4.0× | Thin-margin goods |
| 20% | 5.0× | Very thin — needs scale |
Improving your ROAS
Lift ROAS by raising conversion rate and average order value, tightening targeting, and cutting wasted spend on low-intent placements — or by raising margin so the same ROAS keeps more. To model the conversion and order-value side, use the affiliate income calculator; to project the audience your spend is meant to grow, see the follower growth calculator; and to price a creator partnership feeding the funnel, try the sponsorship rate calculator.
Frequently asked questions
What is ROAS and how is it calculated?
Return on ad spend = revenue ÷ ad spend, shown as a multiple. Spend $1,000, earn $4,000, and your ROAS is 4× — four revenue dollars per ad dollar.
What is a good ROAS?
4× is a common e-commerce benchmark, but it depends on margin. Thin-margin campaigns need a higher ROAS to profit; high-margin digital products profit at a lower one. Always compare to break-even.
What is break-even ROAS?
The point where ad-driven profit equals spend. With no margin it's 1×; with a margin it's 1 ÷ margin — a 50% margin needs 2× to break even.
How do I calculate campaign profit?
Profit = revenue × margin − ad spend. At 100% margin it's simply revenue minus spend; lowering margin reflects cost of goods.
Why does margin change whether my ROAS is good?
ROAS measures revenue, not profit. A 3× ROAS at 25% margin loses money. The calculator shifts the good/bad zones to your margin so the verdict reflects profitability.
Is ROAS the same as ROI?
No. ROAS compares revenue to ad spend only; ROI compares net profit to total cost. ROAS is the quick top-line metric; the profit row here bridges toward ROI by applying your margin.
The 4× ROAS benchmark and the break-even = 1 ÷ margin relationship are standard performance-marketing concepts. See general guidance such as Google Ads: about conversion value and ROAS. Your true break-even depends on your own gross margin.
Last reviewed June 14, 2026