Writing & SEO

Word Count & Readability Score: A Complete Guide

Learn what readability scores mean (Flesch, Gunning Fog, SMOG) and how to improve your writing with a free word counter.

4 June 2026·6 min read·Open the tool →

Why readability matters for SEO

Google prioritises content that users actually read. Pages with high bounce rates rank lower. Readable content keeps people on the page longer. Aim for Flesch Reading Ease above 60 for general audiences.

What the readability scores mean

  • Flesch Reading Ease (0–100) — higher is easier. 60–70 = standard. Below 30 = academic.
  • Flesch-Kincaid Grade Level — US school grade needed. Aim for grade 8 for broad audiences.
  • Gunning Fog Index — similar to FK Grade. Below 12 is readable.
  • SMOG Index — good for health/medical content.

How to use the Word Counter for SEO

  1. Open ToolCrix Word Counter.
  2. Paste your article.
  3. Check keyword density — aim for 1–2% for your target keyword.
  4. Review readability scores — aim for Flesch ≥ 60.
  5. Check reading time — featured snippets favour articles under 7 minutes.

Tips to improve readability

  • Break sentences over 20 words into two.
  • Replace complex words with simpler ones.
  • Use active voice.
  • Add subheadings every 200–300 words.