Calculator
CPM = spend / impressions x 1,000
CPM
$5.00
Use CPM as one efficiency signal, then compare downstream quality before scaling creative.
Compare CPM only across campaigns with similar audience, objective, placement, and timing.
If CPM is low but conversion quality is weak, the creative may be earning cheap attention from the wrong audience.
Use a consistent naming convention so CPM can be read by hook, format, offer, and destination.
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