ROAS calculator. Channel-level math.
Enter spend and revenue per channel. Get per-channel ROAS, blended ROAS, break-even ROAS from your gross margin, and which channels clear the bar.
Enter spend + revenue per channel.
Blended + break-even.
ROAS without margin is a vanity metric.
The ROAS number your ad manager reports tells you what revenue came back per dollar of spend. It does not tell you whether that revenue is profitable. Break-even ROAS answers that: the threshold below which you lose money, computed from your gross margin. For a brand with 45 percent gross margin, break-even ROAS is 2.22x. Every channel running below that is losing money on first order, regardless of what Meta says.
Three numbers matter more than the single reported ROAS. First, blended ROAS (total revenue / total spend across all channels) because channel-level ROAS double-counts and inflates. Second, break-even ROAS (1 / gross margin) because that is the line below which spend loses money. Third, contribution ROAS (revenue × margin / spend) because it is the profit-aware version that tells you what actually lands in the bank.
Tools in the same cluster: Blended CAC calculator for the cost-per-new-customer view. CAC payback calculator for the cash-flow view. LTV calculator for the long-horizon view.
Five answers.
What does ROAS mean?
ROAS (return on ad spend) is revenue divided by ad spend for a given channel or campaign. A 3x ROAS means every dollar of ad spend generated three dollars of revenue. ROAS is revenue-based, not profit-based, which is why break-even ROAS (the ROAS below which a channel is actually losing money once gross margin is factored in) is the more honest scaling threshold.
What is break-even ROAS?
Break-even ROAS equals 1 divided by your gross margin percentage. A brand with 40 percent gross margin has a break-even ROAS of 2.5x (1 / 0.4); below that, every dollar spent loses money on first order. Above it, the channel is profitable on a first-order basis. LTV extends the acceptable ROAS downward because repeat-purchase contribution offsets thin first-order economics.
What is a healthy ROAS by channel in 2026?
Meta prospecting: 1.5-3x typical for DTC brands. Meta retargeting: 4-8x typical (higher intent). Google search: 3-6x on branded terms, 1.8-3x on non-brand. Google Shopping: 2-4x typical. TikTok prospecting: 1.2-2.5x typical. Affiliate: 5-15x depending on commission structure. Email (not ads but often measured similarly): 15-40x because the cost is the tool subscription plus creative, not per-send. These ranges shift with iOS privacy changes; blended ROAS is the more stable metric.
Why is reported ROAS per-channel higher than blended ROAS?
Channels double-count. Meta credits a conversion that Google also saw; Google credits a conversion that TikTok also saw. Each platform counts within its own attribution window with click and view weighting that inflates its own contribution. When you add up per-channel ROAS, you overcount. Blended ROAS (total revenue divided by total ad spend across all channels) removes the double-counting and is the number that actually corresponds to the business.
Does this calculator save my data?
No. All values stay in the browser. Nothing is transmitted to a server. Close the tab and the data is gone. The Copy Results button produces a formatted summary for your clipboard.
Below break-even ROAS?
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