Write copy people and AI can read.
Paste your text to get the Flesch reading ease score, grade level, reading time and a list of the sentences worth shortening.
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Why readability matters for SEO and AI search
Readable pages keep visitors reading and convert better, and they are easier for AI assistants to quote. Answer engines favor clear, direct sentences that state a fact in one go. Long, clause-heavy sentences are harder to lift into an answer.
For most service businesses, aim for a reading ease of 60 or higher (roughly 8th grade). Short sentences, common words and one idea per sentence get you there without dumbing anything down.
How the scores work
Flesch Reading Ease and the Flesch-Kincaid grade level use average sentence length and syllables per word. Syllables are estimated, so treat the scores as a guide rather than an exact measurement.
Frequently asked questions
What is a good Flesch Reading Ease score?
60 to 70 is plain English that most adults read easily. Above 70 is easy; below 50 is difficult for a general audience.
What grade level should web copy be?
For most consumer and local service websites, aim for about 7th to 9th grade. Technical or B2B audiences can handle more, but shorter sentences still help.
How is reading time calculated?
Word count divided by an average adult reading speed of about 238 words per minute.
Is this readability checker free?
Yes, with no signup. Everything runs in your browser; nothing you enter is sent anywhere.
Related reading
- Free keyword density checker
- Free AI content detector
- Content formats that answer engines quote
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