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CPM Calculator

Enter your cost and impressions to get your CPM — cost per thousand impressions — the key metric for awareness, display and video campaigns.

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CPM

How to calculate CPM

CPM = Cost ÷ Impressions × 1,000. £500 for 100,000 impressions is a £5 CPM. CPM is how display, video and awareness buys are usually priced.

When CPM matters

For reach and branding, CPM is the efficiency metric. For response campaigns, keep an eye on CPC and CPA instead.

Frequently asked questions

How do I calculate CPM?

Divide cost by impressions, then multiply by 1,000.

What is a good CPM?

It varies by platform and audience; compare against your own history and the value of the reach.

Is this free?

Yes — no sign-up.

Numbers not adding up?

If the figures aren't where you want them, tell me what you're seeing. I'll give you a straight answer on whether it's fixable and whether I'm the right person to fix it.

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