What Is ROAS (Return on Ad Spend)?
ROAS (Return on Ad Spend) is the revenue attributed to your ads divided by the amount you spent on those ads. A ROAS of 4 means every $1 of ad spend brought back $4 of revenue. It's the fastest read of paid-media efficiency inside an ad account, but it's a revenue metric, not a profit metric.
Also known as: return on ad spend, roas meaning, roas formula, roas calculation, what is roas in marketing, roas vs roi, be roas, breakeven roas. This page answers "what is ROAS", ROAS formula,ROAS calculation, and ROAS benchmarks for Bangladesh and global performance marketing teams.
Formula
The result is a multiple (e.g. 3.5×) or a ratio (350%). Most ad platforms report it as a multiple. Always confirm whether the revenue in the numerator is gross (before COGS) or net, the platform default is gross.
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Worked example
A Shopify brand spends $10,000 on Meta ads in a month and Meta reports $42,000 of attributed purchase value. ROAS = 42,000 ÷ 10,000 = 4.2. If gross margin is 55%, the actual profit is $42,000 × 55% − $10,000 = $13,100, profitable. But if margin is 25%, profit is $500, the account is one bad week away from losing money at the same 'good' ROAS.
Benchmarks
- D2C ecommerce (mid-margin): 2.5×, 4× is workable; above 4× usually means under-spending.
- High-margin SaaS / info: 1.5×, 2.5× can still be profitable because payback is fast.
- Low-margin retail / grocery: 6×, 10× is the breakeven zone.
- New account (< 30 days): trust nothing below 100 conversions. ROAS jumps around.
Nielsen's cross-media ROI Report puts the global median advertising ROAS at ~2.6× across paid channels, with 50% of campaigns coming in below 1× on a strict last-click basis.
Why it matters
ROAS is a bidding signal, a scaling gate, and the number your CFO asks for. But it's blind to margin, LTV, and incrementality. A 6× ROAS on retargeting can be near-zero real lift, those buyers were coming anyway. Use ROAS to steer within a channel; use MER and payback period to decide the total budget.
Common mistakes
- 1.Treating ROAS as profit. It's revenue ÷ spend, you still owe COGS, salaries, and taxes.
- 2.Comparing platform-reported ROAS across Meta, Google, and TikTok. Attribution windows and view-through rules differ, so the numbers aren't apples to apples.
- 3.Optimising the whole account to hit one 'target ROAS.' Prospecting will always look worse than retargeting; averaging hides both.
- 4.Judging ROAS with fewer than 50 conversions, the sample is too small to trust.
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FAQs about ROAS
What is a good ROAS?
It depends on gross margin. As a rule of thumb: divide 1 by your gross margin to get breakeven ROAS. A 30% margin business needs ~3.3× to break even; a 60% margin business needs ~1.7×. Any 'good ROAS' benchmark that ignores margin is guessing.
What's the difference between ROAS and ROI?
ROAS uses revenue in the numerator; ROI uses profit. ROI = (Revenue − Cost) ÷ Cost. ROI is the honest bottom-line number; ROAS is the fast operational one.
How is ROAS different from MER?
ROAS is per-channel and uses platform-attributed revenue. MER (Marketing Efficiency Ratio) is total company revenue ÷ total marketing spend, no attribution required. MER is harder to game and closer to reality.
Why is my Meta ROAS higher than my Shopify ROAS?
Meta counts view-through conversions and uses a 7-day-click, 1-day-view window by default. Shopify counts only last-click. The gap is normal, trust MER for the real number.
Does higher ROAS always mean scale?
No. If ROAS is 8× and rising as you cut spend, you're leaving demand on the table. Efficient at low volume is easy; you want the highest ROAS achievable at the volume your business needs.
Related terms
Total revenue ÷ total ad spend, the blended, attribution-free ROAS.
Ad spend divided by conversions, the price of one action.
Lifetime value ÷ acquisition cost, the unit-economics gate for scaling.
Average revenue per transaction, total revenue ÷ number of orders.
% of clicks or sessions that complete the target action.
How credit for a conversion is assigned across ad touchpoints.
Measures the lift ads caused vs what would have happened anyway.
Cost to serve 1,000 impressions, the auction's price signal.