CPM to CPV converter
Effective CPV = CPM / (1,000 x view rate). The headline output is the breakeven: the CPM below which the impression buy wins.
The arithmetic, once
1,000 impressions at a 30% view rate deliver 300 views. A $10.00 CPM therefore prices views at $10.00 / 300 = $0.033 each. Against the $0.024 in-stream average Store Growers, Google Ads Benchmarks, Q1 2026, that CPM loses: breakeven is $0.024 x 1,000 x 0.30 = $7.20. Quote clears under $7.20, take the CPM buy; over it, buy views.
Use a real view rate
The conversion is only as honest as the view rate you feed it. Pull VTR from a past flight with the view rate calculator; view rate is views divided by impressions as defined by Google Ads Google Ads Help, video ad views, 2026. Optimistic VTR guesses are how CPM deals get rationalized in review decks.
The strategy question, when to buy impressions at all, lives at CPV vs CPM. Planning a budget: the budget planner. Back to the main solver.