Readability Score Calculator
Paste any text to instantly calculate six readability scores. Understand what grade level your writing targets and optimize for your audience — whether you're writing blog posts, marketing copy, technical docs, or academic papers.
Scores Explained
Flesch Reading Ease — 0 to 100 scale. Higher = easier to read. Most web content should aim for 60-70. Flesch-Kincaid Grade — US school grade level needed to understand the text. Gunning Fog — Years of formal education needed. Accounts for complex words (3+ syllables). Coleman-Liau — Based on characters per word rather than syllables, making it more consistent. SMOG — "Simple Measure of Gobbledygook" — estimates years of education needed, focused on polysyllabic words. ARI — Uses character and word counts instead of syllables for faster computation.
Frequently Asked Questions
Built by Derek Giordano · Part of Ultimate Design Tools