Readability Checker
Instantly analyze your text's grade level and sentence complexity with widely accepted readability formulas.
No credit card needed
Why use our readability checker
Get a detailed readability analysis according to the target audience selected in a matter of seconds.
Instantly Detect Reading Level
Calculate your content’s grade level in seconds using widely accepted readability formulas.
Improve Sentence Structure
Identify hard, very hard sentences and weak words present in your content.
Multiple Readability Scores
Get Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog Index, SMOG, Coleman Liau Index and Automated Readability Index scores for the content provided.
Target the Right Audience
Write for students, professionals, or general readers with precision.
How to use NetusAI readability checker
NetusAI’s readability checker is very easy to use. Just follow these simple steps.
Paste or Write Your Text
Enter the content to analyze, from a single sentence to a full article.
Select the target audience
Select the target audience for your content.
Click “Analyze”
Our tool analyzes the content against six different trusted readability formulas.
Review the Results
See your scores, grade level, and sentence complexity. Adjust your content for better readability.
What Do the Readability Scores Mean?
NetusAI uses a combination of proven readability metrics to give you the most accurate understanding of how your text will be perceived.
Flesch Reading Ease
Score ranges from 0 to 100 indicating how easy the content can be read? Aim for 60–70 ("Plain English"), which is easily understandable by the average 13 to 15 year-old.
Flesch-Kincaid Grade Level (FKGL)
The U.S. school grade level required to understand the content. Aim for Grade 7 or 8 to reach over 80% of the general public.
Gunning Fog Index
The estimated years of formal education needed to understand the content on the first read. Aim for 8 - 10. Anything above 12 is considered difficult, requiring higher education.
SMOG Index
A highly accurate grade level prediction is often considered the "gold standard" for critical information.
Coleman Liau Index
Similar to other grade-level scores, but this formula relies on characters instead of syllables.
Automated Readability Index (ARI)
The approximate U.S. grade level or age of the reader needed to comprehend the content.
Who should use Netus AI readability checker?
Whether you’re a teacher checking assignments, a student ensuring clarity or a content creator creating content for his audience, our readability tool helps them all.
Students & Researchers
Improve essay quality, simplify academic arguments, and meet grade-level expectations.
Content Writers
Make posts more digestible and reader-friendly for your audience.
SEO Professionals
Boost content performance by aligning readability with engagement goals.
Teachers & Educators
Assess student materials and ensure they're level-appropriate and easy to follow.
Marketing Teams
Enhance messaging clarity for ads, landing pages, and customer communication.
Pricing
View the detailed pricing page for comparison between different pricing plans and features.
Free
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50 credits/month
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50 analysis/month
1 credit = 1 analysis
50 credits = 50 analysis
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50 credits/month
-
50 analysis/month
1 credit = 1 analysis
50 credits = 50 analysis
Other Tools
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Basic
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1,500 credits/month
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1,500 analysis/month
1 credit = 1 analysis
1,500 credits = 1,500 analysis
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18,000 credits/year
-
18,000 analysis/year
1 credit = 1 analysis
18,000 credits = 18,000 analysis
Other Tools
- AI Bypasser / Humanizer
- AI Detector
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Standard
-
10,000 credits/month
-
10,000 analysis/month
1 credit = 1 analysis
10,000 credits = 10,000 analysis
-
120,000 credits/year
-
120,000 analysis/year
1 credit = 1 analysis
120,000 credits = 120,000 analysis
Other Tools
- AI Bypasser / Humanizer
- AI Detector
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Premium
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40,000 credits/month
-
40,000 analysis/month
1 credit = 1 analysis
40,000 credits = 40,000 analysis
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480,000 credits/year
-
480,000 analysis/year
1 credit = 1 analysis
480,000 credits = 480,000 analysis
Other Tools
- AI Bypasser / Humanizer
- AI Detector
- Paraphraser
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Elite
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100,000 credits/month
-
100,000 analysis/month
1 credit = 1 analysis
100,000 credits = 100,000 analysis
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1,200,000 credits/year
-
1,200,000 analysis/year
1 credit = 1 analysis
1,200,000 credits = 1,200,000 analysis
Other Tools
- AI Bypasser / Humanizer
- AI Detector
- Paraphraser
- AI Summarizer
- Keywords Extractor
- Title Generator
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- Email Writer
More than just an article generator
NetusAI offers a complete suite of tools that make content creation faster, easier, and more productive.
AI Humanizer
Humanize AI-generated text and avoid getting detected by AI detectors.
Summarizer
Create personalized, high-quality summaries and get the gist of any content.
Paraphraser
Paraphrase text in any writing style or in your own brand voice.
Article Generator
Write SEO-friendly articles in seconds and speed up your content writing process.
FAQs
What is a readability checker?
A readability checker analyzes content and calculates how easy it is to read using standardized formulas. It helps determine your content's grade level, points out hard, very hard sentences, and also identifies the weak words.
Does readability affect SEO?
Yes. Readable content improves user experience, increases time on page, and contributes to higher rankings.
Which readability score is the most important for my content?
While all six scores provide valuable insights, the Flesch Reading Ease and Flesch-Kincaid Grade Level are considered the gold standards. The remaining scores are used according to specific contexts:
- Web & SEO focus on Flesch Reading Ease. It is the primary metric used to determine how accessible your content is to the average reader.
- Healthcare & Legal prioritize the SMOG Index. It is renowned for its accuracy in critical information sectors.
- Business Reporting the Gunning Fog Index is ideal, as it specifically penalizes "foggy" or unnecessarily complex details.
What is a good readability score?
For general audiences, aim for a Flesch Reading Ease of 60 - 70 and a grade level of 8 or below. Simpler writing is easier to understand and more engaging.
Why does my tool provide six different readability formulas?
Different formulas prioritize different linguistic elements:
- Automated Readability Index (ARI) and Coleman-Liau use character counts per word, making them excellent for quick, machine-based processing.
- Flesch-Kincaid and SMOG rely on syllable counts, which offer a deeper look at phonetic complexity.
Using multiple scores allows you to cross-verify your content's clarity and ensure it is perfectly tailored to your specific audience.
Make Your Writing Easy to Understand
Whether you're writing for school, business, the web, or a global audience, NetusAI’s Readability Checker gives you the insights you need to write with confidence.
Check Readability Now