Social & Content

Influencer CPM Calculator

Influencer pricing is mostly vibes until you convert it to a CPM. Then it becomes a media buy you can compare against paid social, and a surprising number of deals stop looking clever the moment you run this.

Your numbers

Result

Effective CPM$36.57
Estimated total reach95,700
Cost per engagement$0.61
Estimated engagements5,742

FormulaEffective CPM = (creator fee ÷ estimated total reach) × 1,000, where reach = followers × reach rate × posts

Worked example

A $3,500 fee for 3 posts from a 145,000 follower account reaching 22 percent of the audience delivers about 95,700 impressions, a $36.57 CPM. At a 6 percent engagement rate that is 5,742 engagements and $0.61 per engagement.

What to watch for

Always ask for screenshotted reach from the last ten posts before signing. Follower count is the number creators quote and reach is the number you are buying, and the gap between them is where bad deals live.

A $30 to $50 influencer CPM can still be a good buy when the alternative is a $12 CPM against a cold audience, because you are also buying implied endorsement. Just make the trade knowingly rather than by accident.

Cost per engagement is the better comparison metric for awareness deals, and cost per tracked sale is the only one that matters for performance deals. Insist on a unique code or link, or you are buying a feeling.

Frequently asked questions

What is a fair influencer rate?

A common starting heuristic is roughly one cent per follower per post, but that ignores reach quality entirely. Price on estimated reach and past performance, then sanity check the resulting CPM against what you pay for paid social to the same audience.

Do micro influencers give better value?

Often yes on engagement rate and cost per engagement, but they cost more in coordination overhead per impression. Ten micro deals take ten times the management of one mid-tier deal, and that time is real money.

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