Test your text against multiple readability formulas instantly. Get a score, a grade level, and actionable suggestions to improve.
WordCountPro's readability checker analyses your text against three industry-standard readability formulas — Flesch-Kincaid Grade Level, Gunning Fog Index, and SMOG Index — and gives you an overall readability score with specific suggestions for improvement. Ideal for bloggers, content writers, students, and anyone who wants their writing to be clearer and more accessible.
The Flesch-Kincaid Grade Level formula converts sentence length and word complexity into a US school grade equivalent. A score of 8 means your text is appropriate for an 8th grader (age 13–14). Most web content aims for Grade 7–8.
The Gunning Fog Index estimates how many years of formal education a reader needs to understand your text on first reading. It places extra weight on "complex words" — words with three or more syllables. Most popular press targets a Fog Index of 10–12.
The SMOG (Simple Measure of Gobbledygook) Index was developed for health communication and is widely used in medical and public health writing. It counts polysyllabic words (three or more syllables) across 30 sentences to estimate reading grade level.
For most web content and blog posts, aim for a Flesch-Kincaid Grade Level of 7–8 and a Gunning Fog Index under 12. Health and public information content should aim for Grade 6 or below. Academic writing is typically Grade 12 and above.
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