Google Ads success requires knowing your ROAS (Return on Ad Spend) and true ROI after product costs.
ROAS = Revenue / Ad Spend. A 4× ROAS means $4 earned per
True ROI accounts for COGS: if product margin is 40%, you need ROAS > 2.5× to profit.
Use this calculator when estimating the monetisation potential of a channel or account before committing significant time or investment to growing it. Revenue estimates help set realistic expectations for content creator economics.
A frequent error is conflating views with revenue-generating impressions. Not every view generates an ad impression — ad blockers, skip rates, and video format all affect monetisable inventory. Actual earnings are typically lower than view-count-based estimates.
A content creator with 80,000 YouTube subscribers and an average of 150,000 monthly views estimates their CPM-based ad revenue at roughly £450–£600/month — a useful benchmark for deciding whether to prioritise monetisation or continue growing the audience first.
4:1 (4× ROAS) is a common benchmark. But profitable ROAS depends on your product margins.
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