SEO Keyword Density Calculator
Calculate keyword density and LSI keyword distribution to optimize content for search engines while avoiding over-optimization penalties.
Results
What is it?
Keyword Density is the percentage of times a target keyword appears relative to the total word count on a page. LSI (Latent Semantic Indexing) keywords are semantically related terms that help search engines understand content context without keyword stuffing.
How to use
1. Enter your total article word count. 2. Count exact occurrences of your primary keyword and enter that number. 3. Count related/LSI keyword occurrences. The calculator returns both densities so you can fine-tune before publishing.
Example scenario
A 1,000-word article mentioning its primary keyword 8 times has a 0.8% keyword density � within the optimal 1�2% range. With 5 LSI keyword occurrences (0.5% density), the content signals topical relevance without appearing spammy.
Pro tip
Optimal keyword density: 1�2%. Under 0.5% may signal under-optimization; above 3% risks over-optimization penalty. Modern Google algorithms focus heavily on topical authority and E-E-A-T � prioritize comprehensive coverage of the topic over exact keyword repetition. Use tools like SurferSEO or Clearscope to identify the right LSI terms.