CPM, or Cost Per Mille, is one of the key terms in internet marketing and advertising. But what does this term mean and what is its importance? These are the questions we will answer in today’s article, as well as tell you in which situations it is worth using CPM in contextual advertising, and in which situations it is not.

What is CPM?

CPM is the cost per thousand impressions of an ad or banner. Cost Per Mille, accordingly, translates as “cost per thousand”

Cost Per Mille has already become a kind of standard in online advertising, which is used by digital marketers to evaluate the effectiveness of marketing campaigns and optimize the budget for promotion. In this case, it is important not only to achieve the optimal ratio of cost and the number of ad impressions, but also to increase the number of clicks on ads. Because by themselves shows do not bring the business of real benefit. At most – increase recognition. And here you may have a logical question about the relevance of using the CPM model. The answer is in the next paragraph.

Why businesses need CPM

Although CPM is not directly related to the number of conversions, this metric is extremely important from a business perspective to implement a successful advertising strategy. This metric needs to be considered for several reasons:

• To estimate the cost of advertising. CPM makes it possible to determine exactly how much it costs per thousand ad impressions in order to plan the budget more effectively and better understand how expensive an advertising campaign is in general.
• To compare the effectiveness of different platforms. By comparing CPMs on different advertising platforms, you can determine where advertising costs less and is more effective, so that you can choose the optimal directions later.
• To optimize ad spend. Understanding CPM helps you to allocate your budget to the channels that give the highest return on investment.
• For planning and forecasting. CPM can be used to forecast future spending and more accurately plan advertising budgets based on your anticipated budget and goals.

CPM is also very useful for analyzing audiences and competitors. High bids mean that the audience is active and valuable, and con

How to calculate CPM?

is carried out quite simply. You need to divide the total cost of the advertising campaign by the number of ad impressions and multiply by 1000. The CPM formula is as follows:

CPM = (Cost of RC ÷ Number of impressions) × 1000

That is, you need to know only two parameters beforehand: how much you invest in an advertising campaign and how many ad impressions you get for this money. For clarity, we can make an approximate calculation.

Examples of CPM calculation

Let’s imagine that your metrics are as follows:

• $300 was spent on your ad campaign;
• your ad was shown 100,000 times.

Next, simply substitute these values into the formula and perform the calculation:

(300 ÷ 25 000) × 1000 = 12

So we found out that your CPM is 12. That is, you pay $12 for every 1,000 ad impressions. Or $0.02 per 1 display.

CPM model in marketing

The CPM model is optimal for a business that simultaneously wants to increase recognition and reach a large audience on a relatively small budget. It is actively used by marketers because of the simplicity of budget planning and calculations.

It is important to add that the CPM model is not only used in Google contextual advertising. It is common in other areas as well:

• banner advertising on websites;
• video advertising, including on YouTube;
• advertising in social networks: Facebook, Instagram and others.

Thanks to its versatility, practicality and simplicity, the CPM model has become one of the key tools of modern digital marketing, allowing brands to more effectively plan and manage their advertising campaigns aimed at increasing reach and recognition.

CPM vs CPC: key differences

While the CPM model calculates the cost per thousand impressions of an ad, the CPC (Cost Per Click) model calculates the cost per click on an ad. That is, in the second case the advertiser pays only for clicks, not for impressions. And in some cases, this is prioritized.

In general, CPM is more useful for increasing brand awareness and reaching a large target audience. And the CPC model in turn is more effective for increasing traffic and conversions, as it allows you to pay only for specific targeted user actions. A more detailed comparison of these models is in the table below:

When to use CPM in contextual advertising

As mentioned above, the CPM model is particularly useful for increasing the target audience’s awareness of a brand and increasing its recognizability among potential customers. This is especially true for new brands or products that are just entering the market.

There are other situations where CPM will be preferred:

• Retargeting and remarketing. If you need to remind users about your own product or brand, a CPM campaign may be the best option.
• Seasonal or temporary offers. When you need to notify maximum potential customers about special offers while using a relatively small budget, CPM works great too.
• Branded campaigns. If your goal is to create strong product and brand associations and improve your overall image, CPM is very useful. Especially for visual ad formats such as videos or banners.

However, there are some situations where the CPM model probably won’t work for you:

• It is important for you to get conversions, not impressions;
• you have a limited budget and are looking to maximize your ROI;
• there is a lot of competition in your niche, so CPM may not provide the desired efficiency;
• your promotional materials do not attract proper attention of the target audience and do not generate a response;
• you need to precisely target a narrow, specific audience rather than maximize reach.

In other cases, CPM is a great option to use in your marketing strategy. The main thing is proper planning and budget optimization.

Finally, let’s emphasize once again: CPM is primarily about views, not targeted user actions. This is its advantage and disadvantage at the same time. This format works more on increasing brand or product awareness, but less on conversions and sales. So before using it, you should weigh the pros and cons to determine if it’s really the best option for you.