Impressions, Reach, Engagement and Engagement Rate

Impressions:

Impressions are the number of times a post from your page is dispayed. 

Reach:

Reach is the number of people who received impressions of a Page page.

Engagement and Engagement Rate:

Engagement on Facebook is when people perform actions on your content. They may like a post, click on a link or comment on an image. The number reported by Facebook as engagement is defined as the number of clicks, likes, shares and comments on a post. 

Engagement rate is the number of people who've engaged with the Facebook post by liking, reacting, commenting, clicking or sharing the post divided by the number of people who were reached. 

Why should we care about Engagement?

With the past post engagement would play a huge part in determining who is going to see your posts. Engagement is a major factor in Facebook's EdgeRank algorithm that determines who gets to see your posts, or in other words what your reach is going to be. 

Why knowing the different important?

Knowing the difference is really important because it's something that would help build your business. Since, more people would be able to see your post and follow/support you since the algorith is going to work in your benefit. If your enegagement and engagement rate are going to your best friend to be able to reach different people. With instagram, if your account is a business instagram, you can see how many people that post impressed, reached and other things that would help with having people check out your page. Consider using your business and services.