Patented Readability Checker

We analyzed 20,000 Google results and identified the ideal readability tests & scores to rank in Google. Utilise this finding for today’s internet audience!

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Improve Readability With These Easy Writing Tips

Use shorter sentences and paragraphs

Breaking up content into shorter, more digestible sentences and paragraphs will make it easier to understand. Long sentences and paragraphs can be overwhelming for reading, increasing the likelihood they lose interest in the content.

Avoid technical jargon and complex vocabulary

Using technical jargon can push people away from your content, especially if they are new or unfamiliar with the topic. This kind of writing can be a real barrier to entry for new users. Try to use more simple and clear language to keep a reader engaged with the content and retain information.

Break up text with headings and subheadings

Break up the text with headings and sub-headings to make the content more readable. Many readers like to scan a document and our readability checker helps show where headings and sub-headings will improve your writing.

Use active voice instead of passive voice

Sentences written in active voice are more direct and less confusing than that of passive voice; this will help readers to be more interested and engaged in the article.

Vary sentence structure

Using a mix of long and short sentences can add variety and interest to the writing. Varying the sentence structure can also help emphasize important points and create a more dynamic and engaging writing style.

Write for your intended audience

When writing, it’s essential to consider the audience and write in a way that is appropriate and accessible to them. Writing for an adult academic audience, for example, will require a different writing style than when writing for a younger audience.

Better Readability Starts Here

From Flesch Kincaid Grade Level, the Automated readability Index, the Coleman Liau Index, Gunning Fog, to everywhere in between, our readability checker analyzes your writing across a number of readability checkers, including:

Flesch Kincaid Reading Ease

The Flesch-Kincaid Reading Ease formula is designed to assess the readability of a text by examining the average sentence length and syllables per word. Higher scores indicate easier to read text, This formula is a very popular tool for evaluate content accessibility.

RE = 206.835 – (1.015 x ASL) – (84.6 x ASW)
Where RE is Reading Ease, ASL is the average sentence length, and ASW is the average number of syllables per word.

Flesch Kincaid Grade Level

The Flesch-Kincaid Reading Ease formula is designed to assess the readability of a text by examining the average sentence length and syllables per word. Higher scores indicate easier to read text, This formula is a very popular tool for evaluate content accessibility.

RE = 206.835 – (1.015 x ASL) – (84.6 x ASW)
Where RE is Reading Ease, ASL is the average sentence length, and ASW is the average number of syllables per word.

Gunning Fog Index

The Gunning Fog Index is a readability metric that accounts for sentence length and the number of complex words, which are defined as words with three or more syllables. A higher score indicates a more difficult text.

GFI = 0.4 x (ASL + PHW)Where GFI is Gunning Fog Index, ASL is the average sentence length, and PHW is the percentage of hard words (words with three or more syllables).

SMOG Index

The Simplified Measure of Gobbledygook (SMOG) Index estimates the years of education needed to comprehend a text by analyzing the number of polysyllabic words in a sample. It is often used for evaluating the readability of healthcare and legal documents.
SMOG = 1.043 x √(30 x PDW) + 3.1291
Where SMOG is the SMOG Index and PDW is the number of polysyllabic words per 30 sentences.

Powers Sumner-Kearl

This formula assesses text readability by analyzing syllable patterns and word frequency data.
First get a sample of 100 words.
GL = 0.0778(ASL) + 0.0455(NS) – 2.2029
Where GL is grade level, ASL is average sentence length and NS is number of syllables.

FORCAST Grade Level

The FORCAST Grade level formula measures text readability based on the frequency of single syllable words.
First get a sample of 150 words.
FORCAST = 20 – (NOSW / NTW)
Where NOSW is the number of one-syllable words, and NTW is the total number of words in the sample.

Coleman Liau Index

This formula considered the number of characters per word and sentences per 100 words to estimate the U.S. grade level required to understand a text. It is unique in that it doesnt rely on syllable counts making it an efficient formula.

CLI = (0.0588 x L) – (0.296 x S) – 15.8
Where CLI is the Coleman-Liau Index, L is the average number of characters per 100 words, and S is the average number of sentences per 100 words.

Automated Readability Index

This formula uses characters per word and words per sentence to determine the readability of a text. We convert the results to the U.S. Grade level.

ARI = (4.71 x CHW) + (0.5 x WPS) – 21.43
Where ARI is the Automated Readability Index, CHW is the average number of characters per word, and WPS is the average number of words per sentence.

Dale-Chall Readability Grade

This formula incorporates sentence length and percentage of difficult words, which are those not found in a pre defined list of 3,000 familiar words.

DC = (0.1579 x PDW) + (0.0496 x ASL)
Where DC is the Dale-Chall Readability Grade, PDW is the percentage of difficult words, and ASL is the average sentence length.

Spache Readability Grade

This formula is specifically designed to analyze texts aimed at young readers, typically grades 1 – 3. By looking at sentence length and unfamiliar words we can determine the rough age at which a reader would need to be for the text.

SRG = (ASL + PDW) / 2
Where SRG is the Spache Readability Grade, ASL is the average sentence length, and PDW is the percentage of difficult words.

Linsear Write Grade

The Linsear Write Grade formula evaluates text readability by focusing on the number of simple and complex words in a sample of 100 words.
First collect a sample passage of 100 words.
LWG = (SIMW + (COMW x 3))
Where LWG is the Linsear Write Grade, SIMW is the number of simple words, COMW is the number of complex words, and NTW is the total number of words in the sample.

Best Readability Score To Rank in Google

Can Your Readers Understand Your Writing?

A readability checker helps ensure that your writing isn’t too simplified or too complex for your readers. By giving you an approximate grade level or readability score, you can ensure that your content is easily understood by your target audience and that they’re getting the most value possible out of the information you’re sharing.

‍Plus, get access to a complete suite of patented content-quality tools.

Which Readability Formulas are Best?

There is no “one size fits all” readability score. Different readability formulas work best with different types of content. Some are tuned toward educational content and grade levels while others are designed for more technical writing.

Ideal Readability Score for Google

The “prevailing wisdom” is WRONG about the reading score you should aim at for Google.
Knowing how your content or writing ranks on a readability index helps make your content more visually digestible to your readers. Resulting in content that is able to be understood and acted upon.
Good readability also keeps the search engines coming back for more and sites with a good readability score tend to rank better than those who do not. See our study on search engine ranking and readability.

Originality.ai is Built For…

Marketers, Writers & Publishers 

Marketers, Writers & Publishers

Teachers & Students

Teachers & Students

  • Uphold integrity and transparency across: assignments, essays, coursework, papers
  • Moodle Plugin: easily check for AI content and plagiarism in Moodle LMS
  • Peace of mind for students with a Free Chrome Extension to ‘Watch a Writer Write’
  • Deep Scan: See why text is flagged as AI + how to ethically edit it, so your work is identified as original (not AI)!
Agencies & Enterprise

Agencies & Enterprise

  • Manage client & writer expectations for AI use
  • Integrate a process for AI detection, plagiarism checking, and factual accuracy at scale
  • Streamline editorial processes across teams with team management and report sharing

How to use Originality.ai

Paste or Upload Text

Step 1

Paste or Upload Text

Login to Originality.ai and paste your text into the editor. You may also upload a PDF or enter a URL for scanning.

Select Scan Types

Step 2

Select Scan Types

Select your desired scan types like AI, Plagiarism, Content Optimization, Readability, Grammar OR Fact checker to scan your text against.

Click Scan

Step 3

Click Scan

Click on the Scan button and get scores for each scan types with detailed explanations and sentence highlights wherever applicable.

Customers love Originality.ai

Sam Saltis

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Originality is a great tool for detecting AI content. The product has been invaluable for our content marketing team. Fernanda and the team are always very responsive and helpful. Highly recommend this product.

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I have the opportunity to make sure that my writing is plagiarism-free, and with a lot of AI-generated content around, I can ensure my writing does not get flagged as just another to the bunch.

I do technical writing where there are only so many ways to describe concepts and ideas. However, Originality.ai gives me the opportunity to personalize my writing even more, which is an advantage. With some time, I can give my content a sense of uniqueness.

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Canadian Law Student

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Originality.ai is the best tool on the market. I have used comparable services and this one is exceptional. It provides an accurate report with a match score which really helps writers/researchers adjust and improve their work. 

There are also advanced features such as paraphrase detection which are not available with any other comparable service. The features provided by Originality.ai are exceptional for users who want to avoid plagiarism and also improve their research process. I hope to continue using Originality.ai for many years to come.

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Todd

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In the Press

Featured by Leading Publications

Harvard UniversityThe GuardianThe New York TimesFlippaMotion InvestSurferDotdash meredithGDDiggity MarketingWriteraccessGMAlibaba.comWalmartAT&TAAReutersBusiness InsiderNeil Patel
CNN

Jennifer Korn

How companies are embracing generative AI for employees…or not

Many prominent companies have entirely blocked internal ChatGPT use, including JPMorgan Chase, Northrup Grumman, Apple, Verizon, Spotify and Accenture, according to AI content detector Originality.AI, with several citing privacy and security concerns.

Read the story ›
Politico

Ben Schreckinger

AI vs. public opinion

Originality.ai, a site that provides detection services for AI-generated content and plagiarism, published a convenient tracker that lists the 10 pending lawsuits against OpenAI and ChatGPT.

Read the story ›
The Guardian

Betsy Reed

Mushroom pickers urged to avoid foraging books on Amazon that appear to be written by AI

Four samples from the books were examined for the Guardian by Originality.ai, a US firm that detects AI content.

Read the story ›
The New York times

Steven Lee Myers & Tiffany Hsu

Another Side of the A.I. Boom: Detecting What A.I. Makes

More than a dozen companies have popped up to offer services aimed at identifying whether photos, text and videos are made by humans or machines.

Read the story ›
Financial Times

Generative AI: hype not hyperintelligence is lifting values

Generative artificial intelligence could produce magic in the sky, says Sam Altman founder of pioneering start-up OpenAI. Successful entrepreneurs are entitled to make visionary statements.

Read the story ›
Axios

Sara Fischer

Major websites are blocking AI crawlers from accessing their content

Nearly 20% of the top 1000 websites in the world are blocking crawler bots that gather web data for AI services, according to new data from Originality.AI, an AI content detector.

Read the story ›
Nature

Andrea Taloni, Vincenzo Scorcia, and Giuseppe Giannaccare

Modern threats in academia: evaluating plagiarism and artificial intelligence detection scores of ChatGPT

Plagiarism and research integrity are sensitive issues in the academic setting, especially after the recent offspring of artificial intelligence (AI) and large language models (LLMs) such as GPT-4.0 [1].

Read the story ›
Digiday

Sara Guaglione

Why publishers are questioning the effectiveness of blocking AI web crawlers

A number of publishers — including Bloomberg and The New York Times — were quick to block OpenAI’s web crawler from accessing their sites, to protect their content from getting scraped and used to feed the artificial intelligence tech company’s large language models (LLMs).

Read the story ›

Frequently Asked Questions

Are readability tests and a readability checker the same thing?

You’ll hear them called by many different names including readability tests, readability scanner, readability index and similar terms. All of them refer to either the process itself or the resulting score that you get telling you how readable your content is.

What is a good readability score?

The readability number you get will depend on your target audience. If you’re writing a presentation for a group of nuclear engineers, you’d obviously want a higher readability score than if you were presenting to a group of college-bound high school students. Plus, different readability checkers look at different parts of your writing or web page to determine readability – some look at sentence length, others look at the words used. This can help you understand the “big picture” of the readability of your content.

What is the readability index?

A readability index is the measurement of how understandable your text is to your target audience. Different experts have taken different approaches to measure this, ranging from the number of complex syllables in a word to the number of words in a sentence. No one way is better than the other, but all of them are unique and give you a 360-degree view of how your writing is evaluated according to similar pieces of content in terms of readability.

Why should I check my work against so many readability formulas?

Getting the big picture of the readability of your content is vital not just to improve audience engagement, but also for your organic ranking in the search engines. When people can read, understand and act on your content, they’re more likely to recommend it, share it with others and consistently come back for more. Having a wide range of readability tests allow you to make sure that every piece you write is the best it can be.