ROAS alone doesn't tell you if your ads make money — your margin does. Enter your numbers below to see your ROAS, your break-even ROAS, and the actual profit your ad spend produces.
At a 40% margin you break even at 2.50x. Your 3.00x ROAS clears that by 20%, netting $1,000 in profit after ad spend.
Estimates only. Platform-reported revenue overstates true incremental sales — validate against blended MER and your real contribution margin before making scaling decisions.
A pure revenue ratio. $15,000 in sales on $5,000 of spend is a 3.0x ROAS. It says nothing about profit on its own.
At a 40% margin you break even at 2.5x. This is the single most important number for setting a target ROAS — beat it and you profit, miss it and you lose money.
ROAS (return on ad spend) equals revenue generated from ads divided by the amount spent on those ads. If you spend $5,000 and generate $15,000 in attributed sales, your ROAS is 3.0x. ROAS is a revenue ratio, not a profit ratio — it does not account for your product margin, so a 'good' ROAS on paper can still lose money.
Break-even ROAS is the ROAS at which ad-driven revenue exactly covers your cost of goods plus the ad spend — zero profit, zero loss. The formula is 1 divided by your gross profit margin (as a decimal). At a 40% margin, break-even ROAS is 1 / 0.40 = 2.5x. Any ROAS above that is profitable; anything below loses money on every order.
There is no universal 'good' ROAS — it depends entirely on your margin. A store with 70% margins is profitable at 1.5x ROAS, while a store with 25% margins needs 4x or more just to break even. Calculate your break-even ROAS first, then target a ROAS comfortably above it (most healthy DTC brands aim for 1.5x to 2x their break-even point) to fund overhead and growth.
ROAS is platform-reported revenue divided by spend on a single channel, and it overstates results because platforms claim credit for sales they only assisted. MER (marketing efficiency ratio) is total store revenue divided by total ad spend across all channels — a blended, deduplicated view that can't double-count. Scale decisions are safer when made on MER; ROAS is best for relative comparisons within one platform.
Three common reasons: thin margins (a 3x ROAS at a 30% margin barely breaks even), platform over-attribution (Meta and Google both claim the same conversion, inflating reported ROAS), and retargeting that harvests sales you'd have gotten organically. Always validate platform ROAS against blended MER and your actual contribution margin before trusting it.
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