Where your computed blended ROAS falls across all paid channels. Whether a level is profitable depends on margin, so compare it to your break-even ROAS rather than a fixed benchmark — a blended ROAS above break-even profits, below it loses.
Range
What it typically suggests
Below 2.0
Paid ads return little over their cost — profitable only on high margins; many stores lose money on the marginal sale here.
2.0 – 3.0
Modest blended efficiency; whether it profits depends closely on your break-even ROAS and margin.
3.0 – 5.0
A solid blended range for many ecommerce margin profiles — ad revenue clears spend with room to spare.
◀ your blended ROAS (3.33x)
Above 5.0
Very efficient paid performance, or a sign you could scale spend further before efficiency falls.
Estimates only — not financial, tax, or professional advice.
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What it calculates: Blended ROAS, Total ad spend, Revenue per ad unit, Ad spend as % of ad revenue.
Updated 5 June 2026 · Transparent assumptions
A single order can appear in three dashboards at once
A customer who sees a video ad, later clicks a search ad and then converts may be counted by both platforms, each within its own attribution window. Summing the revenue each reports produces a number larger than the business actually made.
Blending removes the overlap by construction: one revenue figure from your own order records, divided by the sum of what every channel cost. The total spend is a fact, and so is the revenue — neither depends on anyone’s attribution model.
One channel carrying most of the budget is a risk as well as a result
Seeing spend broken out by channel alongside the blended figure shows how dependent the result is on a single platform. A strong blended ROAS built almost entirely on one channel is one algorithm change or one account suspension away from a very different quarter.
It also frames the test budget question. Spending a small share on a second channel costs a little blended efficiency now in exchange for knowing whether an alternative exists, which is usually worth buying.
Some of that revenue would have arrived anyway
Blended ROAS is not incrementality. Retargeting and branded search in particular capture customers who were already going to buy, so a high measured return can coexist with very little genuine lift.
The only reliable test is to turn spend off in a geography or for a period and watch what happens to total revenue. That costs real money to run and is the only method that answers the question the ratio cannot.
There is no universal target — it is set by your margin
A blended ROAS of 3 is excellent for a business at 25% gross margin and loss-making for one at 20% after all variable costs. The break-even figure is one divided by contribution margin after product cost, shipping, payment fees and returns.
Aiming at a number borrowed from a case study is how businesses scale themselves into losses. Compute your own floor first; the break-even ROAS calculator does exactly that.
Sources & References
Figures on this page are checked against primary, authoritative sources. Links open in a new tab.
Results are estimates for planning and analysis based on the figures you enter. They are not accounting, tax, or financial advice — verify with your own records and a qualified professional before making decisions.
Published the calculator with its formula, worked example, assumptions, limitations and a bespoke guide, and added an automated formula test suite covering it.
Tested the blended return against the sum of every channel spend, recomputed independently from the four channel inputs.
Tested that moving budget between channels leaves the blended figure unchanged while total spend is constant.
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