The difference between Page Reach and Post Reach

When you open a report for an owned Facebook profile, you'll see two metrics for reach: "Page Reach" and "Post Reach"

Page Reach

Page Reach is derived from daily page level values.

Daily page level reach refers to the page's reach on each day during the selected time period. The total page reach is the sum of each day's reach.

For example, if you selected a period of Jan 1 - Jan 3, total page reach would be calculated by adding up the reach on Jan 1, Jan 2, and Jan 3.

Pro Tip: Page reach can include reach that occurred on older posts. If someone logged into Facebook on January 1st and saw a post from December, that reach would be included in the page reach for Jan 1.

Post Reach

Post Reach is derived from lifetime post level values.

Lifetime post reach refers to the reach of a single post. The total post reach is the sum of the lifetime reach values for all content posted during the selected time period. 

For example, if you selected a period of Jan 1 - Jan 3 and during that time you posted 2 pieces of content, Post A and Post B, total post reach would be calculated by adding up the reach of Post A and Post B. 

Pro Tip: Post reach can include reach that occurred after the selected time period. If someone logged into Facebook on January 1st and saw a post from December, that reach would be included in the post reach for December. Therefore, it is normal for post reach to continue rising over time. 

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