Digital Marketing Spending Formula: Here is how you can measure the success of your marketing campaigns

Written by Team EMB

May 20, 2022

Digital Marketing
digital marketing spending formular

To become an expert in digital marketing, you need to learn many formulas in online advertising. This will enable you to become highly successful in your efforts. However, let us assume that you are not trying to become one of the world’s best internet marketers. As long as you are directly involved with digital media, you will still need to be familiar with some online advertising formulas. 

Several factors determine whether you are a successful online advertiser – an entrepreneur, an aspiring expert in digital marketing, someone who manages social media in-house, or even a newbie online advertiser who must know the basic formula for good online advertising. If you want to measure the effectiveness of your online marketing campaigns and better manage them, keep the following formulas in mind.

Listed below are the most important Digital Marketing spending formulas

CTR – Click through Rate

Assuming you have already run a successful online marketing campaign, there’s a good chance you’re familiar with the term “Click through rate,” or CTR for short. CTA represents the ratio of the number of clicks an advertisement receives to the number of times viewed by its audience. The number of clicks on a particular ad is divided by the number of views on the ad and then multiplied by 100 so that the result is known as the click-through rate. A CTR is usually measured as an indicator of the success of an online advert, such as a Facebook advertisement.

CTR = (No. of clicks / No. of views) X 100

CPM – Cost per Mille

The technical term used to describe Cost per Mille is CPM. The phrase mille comes from the Latin word miller, which means thousand. CPM is one of the most popular forms of online advertising, also known as CPC and CPA. Since CPM is also known as the “Cost per Thousand Impressions,” it is also called CPM. CPM is mostly used for creating brand awareness for a company’s products or services. Companies are widely recognised for using this model to promote brand awareness and exposure within their newly established brand. In digital advertising, whenever an ad is displayed to its audience, regardless of whether or not that ad is clicked, it counts as an impression. Therefore, CPM represents the cost per thousand times that the ad is viewed by people, regardless of the number of clicks or views the ad gets. CPM can be calculated by dividing the cost to an advertiser by the number of impressions and multiplying it by 1000 to get the price per thousand impressions.

CPM = (Cost to an Advertiser / Impression) X 1000

CPC – Cost per Click

CPC is another model widely used to measure online advertising effectiveness, similar to CPM (Cost per Thousand). When advertisers select this approach, they will have to pay for each click instead of making a single impression. No matter how many times an ad is viewed by its audience, they will only be required to pay once a click has been observed. This model can be very successful when the campaign aims to generate as many clicks as possible. For example, a Google AdWord campaign is an ad campaign that was set up to advertise one of their products on Google’s network of search engines using the Cost per Click model. Every time a certain keyword is searched on Google, the ad is displayed. But according to the website, there is a cost only if somebody clicks on it. CPC is calculated by dividing the cost to them by the number of clicks. It is similar to their CPM calculation. The formula is as follows:

CPC = cost to and Advertiser / No. of clicks

CR – Conversion Rate

If you are only planning to generate revenue through your online marketing campaign, conversion is probably the most important metric for you to consider. The term conversion has several different definitions. However, it is a phrase used in marketing to describe a situation where a customer takes an action that contributes to your business going in a positive direction. Conversion rates are expressed in online advertising as the ratio between the number of conversions created by an ad on a website and the number of clicks the ad generated.

CR = (No. of Conversion / No. of Clicks) X 100

CPA – Cost Per Action/Acquisition

There have been several specific actions discussed in previous sections. However, like CPM and CPC, there is another model in online advertising called CPA or Cost per Action (also known as Cost per Acquisition.) In the case of CPA, the advertiser will only be charged whether or not an advertisement is successful, regardless of the number of impressions it receives or the number of clicks it generates. CPA is one of the most important aspects of revenue-generating businesses. The cost of an ad is divided by the number of actions taken by the advertiser. In addition to dividing the cost of advertising through impressions by the click-through rate, there is another way of calculating CPA by dividing the result by conversion rate and dividing the result by the cost of advertising.

  • CPA = Cost to an Advertiser / No. of Conversion
  • CPA= Cost to an Advertiser / (No. of impression X CTR X CR)

CPL – Cost Per Lead

CPL is also a popular marketing tactic that is widely used when the goal of a campaign is generating leads, just like CPC, CPM, and CPA. However, there is a considerable difference between CPL and CPA in that CPL is much smaller in terms of cost per acquisition. A CPL is essentially one form of CPA that refers to converting a visitor into a lead even if the visitor was just there as a visitor. 

CPL = cost to the Advertiser / No. of Leads generated from the ad

eCPM – Effective Cost Per Mille

The eCPM is one of the ways advertising performance can be measured. It selects the revenue generated by a thousand impressions of a given ad in contrast to the actual CPM that determines the cost to the advertiser for a thousand impressions of the same ad. Therefore, the term also refers to Revenue per Mille or RPM. CPM is calculated as follows: The revenue earned from an advertisement is divided by the impressions received, and the result is multiplied by 1000.

eCPM = ( Total Earning / Total no. of Impression ) X 1000

eCPC – Effective Cost Per Click

The eCPC metric is the same as eCPM, except it does not consider a thousand impressions but a single click generated by an advertisement. eCPC is used to determine the revenue earned from clicks obtained from an ad for everyone made.

eCPC = Total Earning / Total no. of Clicks

eCPA – Effective Cost Per Action

eCPA is a metric often used to determine the total revenue generated by an advertisement for every action its viewers take on their website. eCPAs are used to measure the success of a CPA campaign, and they are calculated by multiplying the total revenue earned from an ad by the total number of actions performed on the website.

eCPA = Total Earning / Total no. of actions

ROI – Return on Investment

Marketers across the globe use the term ROI, or Return on Investment, to refer to the return on an investment made by a company. A great way to measure a campaign’s success or the success of a business is to look at the monetary benefit versus the amount invested in acquiring it. The ROI calculation is derived by subtracting the total cost from the total revenue generated and dividing the result by the total cost.

ROI = (Total Revenue – Total Cost) / Total Cost


There has been an incredible increase in the ability of any business to advertise effectively, target their target audience and determine where advertising efforts are most effective since the advent of the internet. Social media, search engines, and website sponsorship advertisements are some of the advertising platforms available on the internet. The business owner should determine where their target customer is online and analyse the location of their target customer’s online activity to maximise the advertising return on investment.

Advertising online is an essential component of any business. The internet offers them several benefits, including lower costs, greater targeting, and valuable customer insights, which are difficult to achieve through other advertising media. In addition, customers, competitors, and some prospects are online – make sure they get the attention they deserve while getting the most out of their budget.

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