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How is Related % Calculated?


Related % in the Keyword Magic Tool is based on the URLs being displayed in the top 20 results for the keywords you are analyzing. This metric compares the main searched keyword in Semrush's first two pages of results (what you searched in the top search bar) to the related keyword's first two pages of results. Depending on how these URLs relate, you will receive your Related % metric. 

For example, look at what happens when we search the seed word "buy books" in the Related report.

related KMT

Compared to the related keywords "buy new books," or "buy books online" shown in the results, the related % is 65 and 70. This means that 65% of the URLs that are displayed in the top 20 organic results for "buy books" are also displayed in the top 20 organic results for "buy new books" and  70% of the URLs displayed or "buy books" also displayed for "buy books online".