Keyword density is the number of times a keyword appears on a page divided by the total word count, usually shown as a percentage. In the early days of search, engines leaned heavily on word frequency, so SEOs chased a target density. Modern search engines understand language, synonyms and topics far better, and Google has said there is no ideal density to aim for.
How it is calculated
The formula is simple, which is part of why it lasted so long as a metric. Tools still report it, but the number tells you little about whether a page answers the query.
keyword density = (times keyword appears / total words) x 100
Illustrative: 12 mentions in a 1,500-word page = 0.8%Why it is outdated
Search systems now match meaning, not just strings. A page about invoice automation can rank for queries it never states word for word, because the system recognizes the concepts. Repeating a phrase more often does not make the page more relevant, and pushing it too far crosses into keyword stuffing, which Google's spam policies name directly.
Google representatives have said for years that there is no magic keyword density and that writers should write naturally.
What to check instead
Use the main phrase where it naturally belongs: the title tag, the H1, early in the introduction, and in a heading or two if it fits. Then focus on whether the page covers what a searcher needs: the subtopics, questions, examples and terms an expert would expect to see.
- Is the main topic clear from the title, H1 and first paragraph?
- Does the page cover the subtopics competing results cover, and add something they lack?
- Would the copy read naturally aloud?
Example
A rewrite that cut repetition
A draft landing page for hypothetical scheduling tool Rookhaven used "employee scheduling software" in nearly every paragraph because an old plugin flagged low density. The rewrite used the phrase in the title, H1 and opening, then talked about shift swaps, availability and overtime rules in plain language. The page read better and lost nothing in topical coverage.
Common mistakes
Following a plugin's density score
Some SEO plugins still score density. Treat the warning as a reminder to mention the topic clearly, not as a target to hit.
Questions
No. Google has said it does not use a target density. Mention the topic where it is natural and spend effort on coverage and clarity.
