Reading Level Checker – Flesch Score & Grade Level
Paste your content below to instantly calculate the Flesch Reading Ease score, Flesch-Kincaid Grade Level, average sentence length, and syllable count. Get audience recommendations and tips to simplify your writing. Your data never leaves your device — all processing runs locally.
Reading Level Checker
Readability Scores
Flesch Reading Ease Scale
Why Use the Tools Oasis Reading Level Checker?
Tools Oasis gives you instant readability analysis so you can write content that connects with your audience. Whether you're writing a blog post for a general audience or technical documentation, knowing your reading level is key.
- Flesch Reading Ease: The industry-standard readability metric used by educators and publishers worldwide.
- Grade Level: See the exact school grade level needed to understand your content.
- Audience Recommendation: Get instant advice on who your content is best suited for.
- 100% Private: Your content never leaves your device. No server processing.
- Actionable Tips: Get specific advice to simplify your writing when needed.
How Flesch Reading Ease is Calculated
The Flesch Reading Ease formula is: 206.835 - 1.015 x (total words / total sentences) - 84.6 x (total syllables / total words). Higher scores mean easier reading. Most web content should aim for 60-70 (standard level) or higher for general audiences.
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Frequently Asked Questions
What is Flesch Reading Ease?
Flesch Reading Ease is a readability formula developed by Rudolf Flesch. It produces a score between 0 and 100, where higher scores indicate easier-to-read text. A score of 60-70 is considered standard for general web content. Tools Oasis calculates this instantly for any text you paste.
What is a good readability score for blog posts?
For blog posts targeting a general audience, aim for a Flesch Reading Ease score of 60-70 (8th-9th grade level). For wider accessibility, a score of 70+ is ideal. Most popular online content is written at a 7th-8th grade level.
How is grade level different from Flesch Reading Ease?
Flesch Reading Ease gives a score from 0-100 (higher = easier). Flesch-Kincaid Grade Level converts this into a U.S. school grade level (e.g., 8.0 means an 8th grader can understand it). They use similar inputs but different formulas.
Is my content stored or sent to a server?
No. All readability analysis happens entirely in your browser using JavaScript. Tools Oasis never sends, stores, or logs any of your text. Your content stays 100% on your device.