What is the formula for calculating KEI?
Here is the formula for calculating KEI, Keyword Effectiveness Index:
= (volume of searches per day)^2/(total number of competitors)
Plug this formula into Excel and replace the items respectively.
If you need to find the data source for volume of searches and number of competitors try SEM Rush. It’s a great keyword research tool.
For example, the keyword phrase “stock fraud attorney”, has a daily search volume of 91 (as per Wordtracker) and 7,830,000 competing web pages*. Using the KEI formula, the KEI for “stock fraud attorney” is (91)^2/(7,830,000) = 0.001. In most case, keywords with a KEI greater than 1.00 are what you want, but for specialized keywords this can be nearly impossible to find.
The keyword “securities attorney” would be a better choice. By taking the daily search volume of 3,056 and the number of competing web pages of 12,900,000 the KEI would be (320)^2/(12,900,000) = .007. Which is a better KEI than .001.
What is KEI (Keyword Effectiveness Index)?
- KEI (Keyword Effectiveness Index) is a proposed standard formula to calculate how competitive and popular a set of keywords in search engines.
- KEI for a keyword phrase is formulated as,
- KEI = (Number of Monthly Keyword Searches)^2 / (Competing Pages)
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