Google doesn't directly use a Flesch score as a ranking factor — but it uses the consequences of poor readability as strong signals: high bounce rate, low dwell time and low engagement. In 2026, readable writing that keeps people on the page is a genuine competitive advantage.
What is Readability and Why It Matters for SEO
Readability measures how easy a piece of text is to understand. Poor readability doesn't just lose readers — it loses rankings, because Google measures user behaviour. Consider these two scenarios with identical content:
- Low readability post: Dense 5-line paragraphs, no headings, complex vocabulary → reader bounces in 8 seconds → Google interprets the page as unhelpful
- High readability post: Short sentences, clear headings, simple language → reader stays 4 minutes → Google interprets the page as authoritative
Understanding the Flesch Reading Ease Score
The formula: Score = 206.835 − 1.015 × (words/sentences) − 84.6 × (syllables/words)
- 70–90: Easy — ideal for general web content and blog posts
- 60–70: Standard — suitable for most professional content ✅
- 50–60: Fairly difficult — academic writing, technical blogs
- Below 50: Difficult — legal, scientific journals
💡 Quick benchmark: The New York Times targets a Flesch score of around 65. Most top-ranking blog posts on competitive keywords score between 60 and 75.
8 Ways to Improve Readability Right Now
- Shorten your sentences. Aim for 15–20 words average. This is the single biggest driver of Flesch score improvement.
- Break up long paragraphs. 3–4 sentences maximum, with a blank line between each.
- Use headings every 300–400 words. H2 and H3 headings help readers navigate and give Google semantic context.
- Replace complex words. Use "use" instead of "utilise". Use "show" instead of "demonstrate".
- Use bullet points for parallel items. 3+ items in a series read faster as a bullet list.
- Write in active voice. "The tool calculates your score" reads faster than "Your score is calculated by the tool."
- Add a Table of Contents. For articles over 1,500 words, a TOC improves navigation and reduces bounce rate.
- Check with a Readability Checker. Our Readability Checker calculates Flesch score instantly and tells you what to improve.
What Flesch score should I aim for?
For general blog content targeting a wide audience, aim for 60–70. For technical or developer content, 50–60 is acceptable. For children's content or very broad audiences, target 70–80.
How many words should a blog post be in 2026?
For competitive keywords, 1,500–2,500 words is the typical range for top-5 results. Quality and relevance matter more than length — a 900-word post that fully answers the query will outrank a padded 2,500-word one.