Definition
Cost per mille (CPM, from Latin mille = thousand) is the price paid for 1,000 impressions of an ad — the dominant pricing model for brand awareness and reach campaigns where clicks are not the goal.
CPM is the right metric when impressions themselves are the goal. Brand-awareness campaigns, mass-reach video, and sponsorships are typically priced on CPM because the campaign's value comes from how many of the target audience saw the ad, not how many clicked.
CPM varies enormously by audience and platform. Mass-market Meta CPMs run $5–15; B2B LinkedIn CPMs run $30–60+; programmatic display can be sub-$1. The number alone is meaningless without context — a $40 CPM on a precisely-targeted B2B decision-maker audience is cheap; a $4 CPM on broad untargeted traffic is expensive in disguise.
Origin
Inherited from print and broadcast advertising, where CPM has been the standard pricing model since the mid-20th century. Migrated to display advertising in the 1990s and now coexists with CPC across digital channels.
How it works
- Define the audience precisely — CPM is only meaningful against a target.
- Pick the platform that reaches that audience efficiently (cost per relevant 1,000 impressions).
- Set a budget and target CPM; the platform's auction sets actual CPM.
- Measure reach, frequency, and brand-lift signals (recall, recognition surveys).
- Optimise creative for retention and recall, not click-through.
- Cap frequency so you don't burn your audience with the same ad 30 times.
When to use it
Use when
- Brand awareness campaigns where reach and recall matter more than clicks.
- New product launches needing top-of-funnel exposure.
- Sponsorships and category-defining advertising.
- Retargeting at the brand level (frequency over breadth).
Skip when
- When you need direct response. CPC or CPA is the right model for performance.
- Without audience targeting. Broad CPM with no audience filter wastes the spend.
Key metrics
- CPM itself.
- Reach (unique people).
- Frequency (average impressions per person).
- Brand-lift survey scores (recall, recognition, intent).
Examples
- LinkedIn CPM in B2B SaaS averages 3–5x Meta CPM.
- CPM matters when your KPI is reach; CPC and CAC matter when your KPI is action.
- We capped frequency at 6 — reach grew without burnout.
In practice at Makreate
Makreate brand and awareness campaigns are graded on reach against the right audience at sensible CPM — not click metrics that don't fit the goal. On a recent product launch we ran a $90K LinkedIn campaign at $52 CPM (above-market for B2B SaaS) and reached 71% of the target audience over 6 weeks. Aided brand recognition rose from 12% to 41% in the post-campaign survey — the campaign succeeded by the metric that mattered, even though CPC would have looked terrible.
Advertising →Common mistakes
- Optimising CPM in a direct-response campaign.
- Comparing CPM across platforms without audience-quality context.
- Buying broad audiences for cheap CPM. The cheap impression that doesn't reach your buyer is expensive.
- Ignoring frequency. The same person seeing your ad 50 times burns the audience and wastes spend.
- No brand-lift measurement. CPM campaigns need their own KPIs (recall, intent), not click metrics.
Frequently asked
What's a normal CPM?
Wildly variable. Mass-market display: $1–5. Meta: $5–15. LinkedIn B2B: $30–60+. Premium publisher direct: $20–100+. Compare to your own historical CPM in the same audience.
CPM or CPC for brand campaigns?
CPM. The campaign's value is impressions, not clicks. Forcing CPC bidding on brand campaigns produces optimisation toward whoever happens to click, not the audience that should see it.
How do I measure brand-lift?
Pre/post surveys, brand-lift studies (Meta and Google offer them above certain spend), unaided recall in audience research, and sometimes branded search volume as a proxy.