Readability Score Checker
Score how easy your text is to read and find sentences to simplify.
How to use: Paste your text. The Flesch score, grade levels and a list of long sentences appear instantly. Aim for 60+ for general readers.
How to use the Readability Score Checker
Clear writing reaches more people. Readability formulas give a quick, objective estimate of how demanding a text is, based on how long its sentences are and how long its words are. They are widely used for websites, public information, school materials and business documents.
Paste your text and the checker calculates six well-known scores. Flesch Reading Ease runs from about 0 to 100, where higher is easier: 60 to 70 is plain English that most adults read comfortably, while below 30 suits specialists. Flesch–Kincaid, Gunning Fog, SMOG, Coleman–Liau and the Automated Readability Index each estimate the United States school grade needed to understand the text; the average of all five is shown too.
You also get word and sentence counts, average sentence length, syllables per word and reading time. Any sentence over 25 words is listed so you can split it, often the quickest way to improve a score. Replacing long words with shorter, everyday alternatives helps too.
Syllables are counted with an English pronunciation heuristic, so scores are estimates. Use them as a guide alongside your own judgement about your audience. Your text is analysed only in your browser.
Frequently asked questions
What is a good Flesch Reading Ease score?
For general audiences, aim for 60 or above. Many newspapers score around 50 to 60 and children’s books above 80.
Why do the grade levels differ?
Each formula weighs sentence length, syllables and characters differently. Looking at the average gives a balanced view.
Does it work for other languages?
The formulas were designed for English. Results for other languages are not reliable.