A 3× ROAS sounds great — until you remember margins. This calculator pairs your ROAS (revenue ÷ ad spend) with the break-even ROAS your gross margin implies (1 ÷ margin), then declares the verdict: profitable or not after product costs.
Below this you lose money after costs
At 50% margin you need 2× just to break even; at 30% margin, 3.3×. Knowing your break-even line turns ROAS from a vanity number into a decision tool.
CPM, per-impression cost, impressions per $100.
CVR plus revenue-per-visitor in one view.
From list size to projected revenue and ROI.
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