1. How do I calculate the CPM?
2 What does CPM mean in the context of Google Ads?
3 Why is CPM important for online advertisers?
3.1 Effectiveness of advertising
4 How to reduce CPM and increase the effectiveness of an advertising campaign?
5. CPM versus CPC - find out the key differences
Choice of billing model - a key step towards an effective advertising strategy
CPM (Cost Per Mille), or cost per thousand impressions, is a term commonly used in the online marketing world. It is a measure that determines how much an advertiser pays per thousand impressions of their ad. It is a key indicator that helps to understand and gives information about the effectiveness of an online advertising campaign. In the following article, we'll cover everything you need to know: basic information about cost per 1,000 impressions, how to best and most effectively introduce your ad, how to reduce the cost of impressions, and what the difference is between CPC a CPM.
How do I calculate the CPM?
Calculating the CPM is relatively straightforward. Simply divide the cost of the advertising campaign by the number of thousands of impressions and multiply by one thousand. The CPM is calculated based on the formula:
CPM = cost/views x 1000
For example, if the CPM rate is set at 10 PLN, you will pay that amount for 1,000 ad impressions. If you have 1,000 impressions and the CPM rate is 10 PLN, the cost of the ad will be 10 PLN.
However, it is worth bearing in mind that the CPM model focuses on the cost associated with the number of impressions, regardless of whether users click on the ad or not. Therefore, if your goal is to increase brand awareness by reaching your audience widely, the CPM model can be an effective solution.

What does CPM mean in the context of Google Ads?
In Google Ads, CPM is one of the billing options that allows advertisers to pay for every thousand impressions of their ad, regardless of whether this leads to clicks or conversions. This is particularly useful for brands that want to increase awareness of their products or services through broad reach.
- Definition of display: In the CPM model, each display of an advertisement is charged. Importantly, the number of impressions is not the same as the number of recipients, as an ad can be displayed several times to the same user.
- Brand effectiveness: displays are crucial for branding campaigns, as they allow a broad reach to potential customers. Even if a user does not click on an ad, the mere display can contribute to brand awareness.
- The click-through rate (CTR): Although the CPM model focuses on impressions, it is also worth monitoring the click-through rate (CTR), which measures the percentage of users who click on an ad in relation to the number of impressions. A high CTR can indicate good campaign performance.
- Relevance of content: care must be taken to ensure that the advertising content is tailored to the expectations and interests of the target audience. Advertising must be attractive, engaging and responsive to the needs of potential customers.
- Targeting: In the case of display-based campaigns, precise targeting, i.e. the targeting of an ad to a specific audience segment, is important. This allows you to focus on a group of potential customers, which can increase the effectiveness of the campaign.
- Performance monitoring: Systematic monitoring of campaign performance is essential. Analysis of the impression data allows you to adjust your strategy, identify strengths and weaknesses and optimise your campaigns.
Attention!
Google has replaced CPM with vCPM (viewable cost per mile) for advertising in an advertising network. The difference is that in the vCPM model, a display is considered when 50% of the ad space is visible to the user for a minimum of 1 second. This is therefore a change for the better for advertisers and allows budget utilisation.
Why is CPM important for online advertisers?
Effectiveness of advertising
CPM is an important indicator of the effectiveness of online advertising campaigns. A lower CPM means that the advertiser pays a lower price for reaching a thousand viewers. Therefore, companies aim to optimise this indicator to increase the effectiveness of their marketing efforts.
Cost control
For many online advertisers, controlling costs is a priority. CPM monitoring allows them to better understand how much it costs to reach potential customers. It is an essential tool for advertising budget planning.
Targeting
With CPM analysis, advertisers can better adapt their targeting strategies. A lower cost per thousand impressions means that advertising reaches a more interested audience.

How to reduce CPM and increase the effectiveness of an advertising campaign?
- Optimisation advertising content: Create compelling and engaging advertising content that captures users' attention. Tailor content to the interests and needs of your target audience.
- Using accurate keywords: Choosing the right keywords is crucial to the effectiveness of a campaign. Good keyword alignment can have a positive impact on CPMs, enabling you to reach a more interested audience.
- Landing page optimisation: Make sure your landing page is optimised for user and loading. A fast-loading page can improve quality indicators and benefit CPMs.
CPM vs CPC - find out the key differences
CPM (Cost Per Mille) and CPC (Cost Per Click) models are two different forms of online advertising billing that determine how an advertiser pays for the views or clicks of its ads.
CPM (Cost Per Mille)
- CPM means cost per thousand impressions.
- In the CPM model, the advertiser pays for every thousand impressions of its ad, regardless of whether the user has clicked or not.
- This is more beneficial for advertisers who want to increase the visibility of their brand, even if users do not click on the ad.
CPC (Cost Per Click)
- CPC stands for cost per click.
- In the CPC model, the advertiser only pays when a user clicks on an advertisement. It does not matter how many times the ad has been displayed; only clicks are charged.
- This is a more user action-focused approach, as you only pay when someone expresses interest and clicks the ad.
Choice of billing model - a key step towards an effective advertising strategy
The choice between a CPM and CPC model depends on the advertiser's objectives. If the goal is to increase brand awareness and achieve as many impressions as possible, CPM may be appropriate. Although they pay for the number of impressions, with no guarantee of clicks, CPM is still an effective tool for those who emphasise reach and exposure. However, if the goal is to directly interest users and get them to interact, the CPC model may be a better choice. The key issue is to aptly tailor the payment model to the specific advertising objectives and to continuously monitor the effectiveness of the campaign in order to refine strategies and optimise results.



