For general audiences, aim for Flesch Reading Ease of 60-70 (8th-9th grade level). Web content should target 7th-8th grade. Technical documentation can be higher.

We calculate Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog Index, SMOG Index, Coleman-Liau Index, and Automated Readability Index (ARI).

Use shorter sentences, simpler words, and active voice. Break long paragraphs. Avoid jargon unless writing for experts.

Sentences over 20 words become harder to follow. Aim for average of 15-20 words. Mix short (5-10 words) with medium (15-20) for rhythm. Long sentences tire readers.

Each formula weighs different factors. Flesch emphasizes syllables, Gunning Fog counts complex words, Coleman-Liau uses character count. Multiple scores give a fuller picture than relying on one.

Not necessarily. Even complex topics benefit from clear writing. Explain technical terms when introduced. Break complex ideas into digestible chunks. Grade 10-12 is often ideal for expert audiences.

Use precise, simple words instead of vague complex ones. Replace 'utilize' with 'use', 'ascertain' with 'find out'. Clarity isn't simplification—it's respect for your reader's time.

Google doesn't directly rank by readability score, but readable content keeps visitors on-page longer (reducing bounce rate) and earns more backlinks—both help SEO. Plus, featured snippets favor clear answers.

No. They measure technical complexity, not quality, accuracy, or usefulness. A clearly-written but wrong article scores better than a complex but correct one. Use scores as editing guides, not quality metrics.

No. Blog posts: 6th-8th grade. News articles: 8th-10th. Academic papers: 12th-college. Marketing copy: 5th-7th. Match your audience's expectations and reading context.

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