How to calculate ROAS
Learn the ROAS formula, how to interpret the result, and when ROAS is useful versus when you need margin, profit, or break-even context too.
ROAS stands for return on ad spend. It tells you how much revenue you generated for each dollar spent on advertising.
It is one of the fastest ways to judge revenue efficiency, but it works best when you pair it with margin and profitability context rather than treating it as a final answer by itself.
ROAS formula
ROAS = Revenue / Ad Spend
If revenue is $4,000 and ad spend is $1,000, ROAS is 4.0x. That means every ad dollar produced four dollars in attributed revenue.
Some teams also express ROAS as a percentage. A 4.0x ROAS is the same as 400%.
How to calculate ROAS correctly
- 1Use revenue and ad spend from the same date range, attribution model, and campaign scope.
- 2Divide attributed revenue by ad spend to get the ROAS ratio.
- 3Compare that result against your margin profile, target return, or break-even ROAS before making decisions.
- 4Review ROAS with supporting metrics like conversion rate, CAC, profit, and revenue per visitor when you need a fuller picture.
Worked example: ROAS from campaign revenue and spend
- Campaign revenue: $6,000
- Ad spend: $1,500
- ROAS = 6,000 / 1,500 = 4.0
The result is 4.0x ROAS, or 400%. That means the campaign generated four dollars in revenue for every dollar spent on ads.
How to interpret ROAS in practice
- Higher ROAS usually means stronger revenue efficiency, but not necessarily stronger profit.
- A campaign can show healthy ROAS and still be weak if margins are thin, refunds are high, or overhead is ignored.
- ROAS is most useful for comparing campaigns, channels, and time periods with similar attribution rules.
Relevant calculators
Use these tools to apply the formulas and comparisons from this guide.
ROAS Calculator
↗Calculate return on ad spend from revenue and ad cost so you can see how much revenue each advertising dollar is producing.
Break-Even ROAS Calculator
↗Calculate the minimum ROAS needed to break even from gross margin before you decide whether current campaign performance is actually sustainable.
ROI Calculator
↗Calculate return on investment from gain and cost to understand overall profitability.
Revenue Calculator
↗Calculate revenue from orders and average order value to estimate total sales volume.
Target ROAS Calculator
↗Calculate target ROAS from revenue per conversion and target CPA so you can set clearer return goals before launching or scaling a campaign.
Related guides
ROAS vs ROI
↗Understand the difference between ROAS and ROI, when each one is useful, and why revenue efficiency is not the same thing as profitability.
What is a good ROAS?
↗Learn how to judge whether ROAS is actually good for your business, why benchmarks vary, and how break-even ROAS changes the answer.
Break-even ROAS explained
↗Learn what break-even ROAS means, how to calculate it from gross margin, and how to use it as a practical floor for media decisions.
How pricing affects ROAS and CPA
↗Learn how pricing changes can influence ROAS and CPA, why higher prices do not automatically improve profitability, and how to think through pricing decisions with margin context.
Related topic hubs
If you want a broader starting point, these topic hubs group the most relevant calculators and guides around the same question set.
FAQ
What is a good ROAS?+
There is no universal good ROAS. A strong result depends on margin, fulfillment costs, refunds, and how much overhead your business needs to cover.
Is ROAS the same as ROI?+
No. ROAS compares revenue to ad spend only. ROI is broader and usually looks at net return relative to total cost.
Should ROAS be measured at campaign level or blended level?+
Both views matter. Campaign-level ROAS helps with optimization, while blended ROAS helps you understand overall acquisition efficiency.