Readability Score Calculator — Flesch Reading Ease & Grade Level

Understand how readable your text really is

Have you ever wondered if a passage is easy for your audience to read? A readability score estimates how difficult a piece of writing is based on how it is structured. This readability calculator helps you evaluate text in seconds, whether you are writing a blog post, a lesson, a report, or an email. It is designed for non-experts, so you can get useful guidance without studying complex linguistics.

What readability means in simple terms

Readability looks at patterns that often make writing harder or easier to understand. Longer sentences usually require more focus, and longer words often signal more complex vocabulary. Most readability formulas measure things like average words per sentence, characters per word, or syllables per word. The result is a score or grade level that estimates how much education a reader might need to follow the text comfortably.

Why these scores are useful

• Audience fit: Match your writing to students, customers, or general readers.
• Clarity: Identify sections that are too dense and could use shorter sentences.
• Consistency: Keep a steady reading level across a website, policy, or training guide.
• Compliance: Some industries and public documents require clear language targets.

How to use the readability calculator

1. Paste or type your text into the input box.
2. Click the calculate button to generate scores.
3. Review the reading ease and grade-level results.
4. Use the word, sentence, and syllable counts to refine your draft.

How the main formulas are interpreted

Real-world examples

Teachers use readability scores to match assignments to grade level. Content creators check blog posts to keep them easy to scan. Healthcare and government teams verify that public-facing instructions are understandable. Product teams test onboarding text and help articles to reduce support tickets. If you are simplifying a draft, the scores can show whether edits made a real difference.

How this tool processes your text

This readability score calculator runs entirely in your browser. It counts words, sentences, characters, and syllables, then applies multiple formulas to give you a balanced view of complexity. Your text is never uploaded, so you can analyze private or sensitive writing with confidence.