Easily estimate your expected user engagement metrics on Facebook (Meta)

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Try this FREE Calculator by Plumfind, to estimate the level of user engagement from your advertising campaigns.


Change the values here:

The total amount of money you will invest in advertising. This amount does not include any agency fees.

$ 1000
Engagement Rate
Engagement rate measures the likelihood that a person will click, react to, comment on, share or expand an ad.

2 %
Average ad Frequency:
Frequency measures the average number of times that each person sees your ad. The calculation is the number of impressions divided by the reach.

CPM (Cost per Mille)
CPM denotes the price of every 1,000 impressions an ad receives

$ 25


Estimated Total Impressions: How many times your ads will be displayed.
Estimated Total Reach: How many people will see your ads.
User Engagement Estimate:
Total number of clicks, reacts, comments and shares: 800
Cost per page engagement: $1.25


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Q. How do I use the calculator?

  • This calculator is designed to give you a quick overview of digital advertising on Facebook (Meta). By moving the sliders, you can test the impact of different business assumptions. Some of the sliders will have a much bigger impact on your results, such as the engagement rate.

Q. What do these numbers even mean?

  • You can think of this calculator as a simulator. Cost per page engagement is one of the key values: if it’s in the lower range (e.g., $1), it will be much easier for your business to be profitable. Depending on your industry vertical, the cost per engagement may be much higher than $1, in which case focusing on a profitability metric, such as Return on Ad Spend, would enable you to have a more accurate read on your advertising operations.

Q. Where can I get these numbers for my business?

  • While each business owner has to do their own due diligence, some of these input values can be used as benchmarks. For more details, please check your engagement rate rankings on Facebook (Meta) as explained here.

Q. This calculator is too basic for my needs. Where can I find a more advanced calculator?

  • If you are interested in more detailed calculations and projections, please get in touch with us. We can customize the calculator based on your needs.

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