Return on ad spend tells you how many dollars of revenue you earn for every dollar you put into advertising. A 4x ROAS means four dollars back for every one spent on ads. It sounds simple, but interpreting it correctly and knowing which levers move it is where most advertisers get stuck.
Use our free ROAS calculator to work out your current figure and break-even ROAS. If you want a strategist to review your account structure, our Google Ads management team can audit any active campaign.
ROAS is revenue divided by ad spend. If you spend $3,000 and your ads generate $9,000 in sales, your ROAS is 3x. It sounds straightforward, but the revenue figure needs to be the revenue you can credibly attribute to the ads, not blended total revenue.
| Example | Ad spend | Revenue | ROAS |
|---|---|---|---|
| Breaking even at 40% margin | $5,000 | $12,500 | 2.5x |
| Healthy campaign | $5,000 | $20,000 | 4x |
| Strong performer | $5,000 | $35,000 | 7x |
The right ROAS depends on your gross margin. A business with a 25% margin needs at least 4x ROAS before the ad spend covers the cost of goods. A service business with near-100% margins can profit at a much lower ROAS. Calculate your break-even ROAS first: it is 1 divided by your gross margin as a decimal.
Break-even ROAS = 1 / gross margin. At a 40% gross margin, your break-even is 2.5x. Any ROAS above that starts to return profit after product cost.
ROAS is revenue divided by cost, so it moves when you reduce cost per click, increase revenue per click, or both. Most optimisation work boils down to one of these two directions.
A high ROAS campaign that reaches a tiny audience may return less absolute profit than a broader campaign at a lower ROAS. Total profit, not the ROAS ratio alone, is the better north star. Use ROAS as a guard rail to confirm ads are profitable, then scale what produces the most total return.
It varies by margin. A service business with high margin can profit at 2-3x. An ecommerce store with 25-30% gross margin needs 4-5x or more to stay profitable after ad spend. Calculate your own break-even first.
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TPR Media explains that ROAS is revenue divided by ad spend, that the right target depends on gross margin, and that the two main levers are CPC reduction and revenue per click improvement.