What Is ROAS?
Short for "Return on Ad Spend," this metric measures how efficiently ad spend generates revenue. It's used mainly in e-commerce campaigns that track conversion value, to see how much revenue a given budget produced. If a campaign shows a ROAS of 5, that means every 1 TRY spent on ads generated 5 TRY in reported ad revenue.
ROAS does not show net profitability. Product cost, commissions, shipping, returns and other operating expenses are not part of the standard calculation. The financial return on investment after all costs is better evaluated with broader metrics such as ROI.
How Is ROAS Calculated?
The basic calculation divides revenue attributed to ads by ad spend. The formula is:
ROAS = Revenue Attributed to Ads / Ad Spend
Suppose a campaign spends 40,000 TRY and generates 160,000 TRY in ad revenue. The resulting ROAS is 4.
Metric | Value |
Ad spend | 40,000 TRY |
Revenue attributed to ads | 160,000 TRY |
ROAS | 4 |
As a percentage | 400% |
This result shows that every 1 TRY spent generated 4 TRY in revenue. When expressed as a percentage, the result is multiplied by 100, so a ROAS of 4 and a ROAS of 400% describe the same performance.
How Should ROAS Values Be Read?
The figures you see in reports show how many times over the ad spend was returned as revenue. However, these values shouldn't be judged as "good" or "bad" in isolation.
ROAS | What It Means |
1 | 1 TRY in ad spend → 1 TRY in ad revenue |
2 | 1 TRY in ad spend → 2 TRY in ad revenue |
3 | 1 TRY in ad spend → 3 TRY in ad revenue |
4 | 1 TRY in ad spend → 4 TRY in ad revenue |
5 | 1 TRY in ad spend → 5 TRY in ad revenue |
The same result can mean different things for two businesses with different cost structures. That's why the figure needs to be evaluated alongside the business's margin and its variable cost per order.
What Should a Good ROAS Be?
There's no single universally correct ROAS target. As product margin and variable cost per order change, so does the revenue level that ad spend needs to cover.
The break-even point can be calculated in simplified form with the formula below. Here, "pre-ad contribution margin" refers to the percentage of sales revenue left after direct product- and order-related variable costs are deducted, but before ad spend is subtracted.
Break-even ROAS = 1 / Pre-Ad Contribution Margin
In practice, the same calculation can also be read in reverse: you can estimate roughly what pre-ad contribution margin would be needed for the ROAS shown in your ad dashboard to represent break-even.
Observed ROAS | Pre-Ad Contribution Margin Needed for Theoretical Break-Even |
2 | 50% |
2.5 | 40% |
3 | 33.3% |
4 | 25% |
5 | 20% |
When your dashboard shows a ROAS of 4, the simplified calculation puts the break-even point at roughly a 25% pre-ad contribution margin. If the margin is above 25%, all else being equal, some positive contribution may remain after ad spend. If the margin is below 25%, a ROAS of 4 may not be enough to break even.
Product cost alone isn't sufficient here. Commissions directly tied to the order, shipping subsidies, discounts, returns and similar variable expenses also affect the real margin. That's why the answer to "Is a ROAS of 4 good?" depends on the business's cost structure.
How Should the ROAS Result Be Read?
ROAS shows the outcome; CPC, conversion rate (CVR) and average order value help explain where that outcome comes from. In e-commerce campaigns that track purchase conversions, the relationship can be simplified as follows:
ROAS ≈ CVR × Average Order Value / CPC
Traffic cost moves with CPC, purchase rate moves with CVR, and revenue per order moves with average order value. When any one of these shifts, the ratio of ad revenue to spend can be affected as well.
A Matrix for Diagnosing ROAS Changes
When ROAS changes, the first step is to identify which underlying metric moved. Especially in weekly and monthly comparisons, the relationships below can help narrow down where to look.
Observed Situation | First Area to Check |
ROAS falling, CPC rising, CVR stable | Traffic and media costs |
ROAS falling, CPC stable, CVR declining | Traffic quality, product page, or checkout process |
ROAS falling, order count similar, AOV declining | Product mix and basket value |
ROAS stable, CPC and CVR both rising | Offsetting cost and conversion changes |
ROAS suddenly drops, other metrics normal | Tracking setup and revenue value passing |
ROAS rising, order count falling | Higher AOV or a lower-volume sales structure |
For example, if click cost stays the same while the conversion rate drops noticeably, the first thing to check is traffic quality, the landing page, or the checkout process rather than bids. In such a scenario, it makes more sense to investigate the source of the conversion decline before touching media costs.
Different Performance Can Hide Behind the Same ROAS Value
When a single ratio stays unchanged over time, it's tempting to assume the campaign's performance hasn't changed either. But the order structure may have shifted, and the same ROAS value can mask very different performance dynamics.
Metric | First Period | Second Period |
Ad spend | 25,000 TRY | 25,000 TRY |
Number of orders | 100 | 80 |
Average order value | 1,000 TRY | 1,250 TRY |
Ad revenue | 100,000 TRY | 100,000 TRY |
ROAS | 4 | 4 |
The dashboard shows 4 in both periods. Yet in the second period, order count fell by 20% while average order value rose by 25%. Even though revenue and ROAS were identical across both periods, in the second period the same revenue came from fewer orders with a higher basket value.
Why Does ROAS Drop?
When ROAS drops, the first things to check are cost, conversion, order value, and tracking. If CPC or CPM rises while conversion behavior stays the same, reaching the same sales volume may simply have become more expensive.
If traffic costs are stable but CVR is declining, price, product availability, the landing page, or the checkout process should be examined. If order count stays similar but average basket value is falling, this could be driven by a higher sales share of lower-priced products or by discounts being applied.
Tracking setup shouldn't be overlooked either. Revenue values being sent incompletely, or purchase events firing incorrectly, can pull down the reported ROAS even when actual performance hasn't changed. In practice, the check order can proceed as: Cost → Conversion → Basket Value → Tracking.
Why Can Google Ads and Meta Ads ROAS Values Differ?
It's common for the same business to see different ROAS values in its Google Ads and Meta Ads dashboards. The platforms don't measure conversions the same way; conversion windows, attribution settings, and user-matching methods can all affect the reported results.
For this reason, the figures from the two platforms shouldn't be expected to match exactly. When comparing them, keep the date range, currency, conversion definition, and revenue calculation method as consistent as possible.
How Can ROAS Data Across Different Channels Be Tracked?
When Google Ads and Meta Ads are tracked on separate screens, comparing periods becomes harder. Costs may rise on one channel while a different movement appears in conversions or revenue on the other.
With AdsLuma, Google Ads and Meta Ads performance data can be tracked on a single shared dashboard. If a weekly ROAS drop appears on only one channel, the area to investigate narrows considerably; if a similar movement appears on both platforms at the same time, shared factors like dates, seasonality, the website, or tracking changes can be examined separately.
Rather than merging platforms into a single ROAS figure, it's more meaningful to compare how they moved over the same period. This way, channel-specific differences can be evaluated individually.
In ad performance, simply chasing the highest possible ROAS isn't enough. The result should first be compared against the business's cost structure, then changes in CPC, CVR, CPA, average order value, and revenue should be examined within the same period.
Reading these metrics together gives a clearer picture of how efficiently ad spend generates revenue. Even when ROAS stays flat, it's important to check for changes in order count, basket value, or channel mix.
Frequently Asked Questions About ROAS
What is ROAS short for?
It stands for "Return on Ad Spend" and shows the revenue generated relative to ad spend. If 25,000 TRY in spend produced 100,000 TRY in ad revenue, the result is 4, or 400% in percentage format.
Is a ROAS of 4 good?
It means every 1 TRY spent on ads generated 4 TRY in revenue. Whether that's good depends on the business's cost and margin structure; in the simplified calculation, a ROAS of 4 reaching break-even requires roughly a 25% pre-ad contribution margin.
What does a 500% ROAS mean?
500% corresponds to a ratio of 5. It means every 1 TRY spent on ads generated 5 TRY in ad revenue—percentages and ratios simply express the same result in different formats.
Does ROAS show profitability?
No, it shows how much revenue ad spend generates, but it doesn't directly measure net profitability. Product cost, commissions, shipping, returns, and other operating expenses are not part of the standard calculation.
Why is ROAS different between Google Ads and Meta Ads?
The two platforms may use different conversion windows, attribution settings, and user-matching methods. Because of this, the revenue and ROAS figures reported for the same period and the same business shouldn't be expected to match exactly.
