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CPM Calculator

Work out cost per 1,000 impressions from spend and impressions.

Marketing Tools Reviews Free · no sign-up

CPM (cost per 1,000 impressions)

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Cost per single impression—

Quick Tool Overview

The CPM Calculator turns ad spend and impressions into cost per 1,000 impressions instantly, with the cost of a single impression shown too.

What it does
Calculates CPM (cost per 1,000 impressions)
You give it
Ad spend and impressions
You get back
CPM, plus cost per single impression
Best for
Comparing reach costs across placements or platforms
Marketing Tools Free, unlimited use No sign-up Runs in your browser

About the CPM Calculator

CPM is how display, video and most social ad platforms price reach: what it costs to put an ad in front of a thousand views, regardless of clicks. It is the number to compare when weighing up placements or platforms.

Enter total ad spend and the impressions it bought, and get the CPM straight away, along with the cost of a single impression for comparing very different budget sizes on the same footing.

Key features of the CPM Calculator

Instant results

CPM updates live as spend or impressions change.

Per-impression cost

Useful for comparing very different budget sizes fairly.

Formula shown

The calculation is written out underneath the result.

Runs in your browser

No sign-up, no data sent anywhere.

How to use the CPM Calculator

  1. 1

    Enter ad spend

    The total amount spent on the placement or campaign.

  2. 2

    Enter impressions

    How many impressions that spend delivered.

  3. 3

    Read the CPM

    Cost per 1,000 impressions, updated instantly.

  4. 4

    Compare placements

    Run two placements through the calculator to see which reaches people more cheaply.

Frequently asked questions

CPM = Ad spend ÷ Impressions × 1,000. $500 spent for 250,000 impressions is a CPM of $2.00.

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