CPM Calculator

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

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.

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

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.

If the figures aren't where you want them, I'll find exactly where your Google Ads budget is leaking — free, no obligation.

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