Readability Checker

Paste your text and instantly get a Flesch-Kincaid readability score, grade level, detailed text statistics, and estimated reading time — all processed in your browser.

Your Text
85 words524 characters

Readability Score

63.1

out of 100

Standard

8th-9th grade level. Plain English. Good for most audiences.

Very Difficult (0)Standard (60)Very Easy (100)

85

Words

6

Sentences

2

Paragraphs

1 min

Read Time

8

Grade Level

438

Chars (no spaces)

14.2

Words/Sentence

1.5

Syllables/Word

Why use it

Write at the right level for your audience

Flesch-Kincaid Score

The industry-standard readability formula used by educators, publishers, and SEO professionals to gauge content accessibility.

Grade Level Rating

See what education level your content is written for — from 5th grade to college graduate. Aim for 7th-8th for general audiences.

Reading Time Estimate

Get an accurate estimate of how long it takes to read your content so you can optimize for attention spans.

Detailed Text Statistics

Word count, sentence count, paragraph count, average words per sentence, syllable density — everything you need to refine your writing.

Frequently Asked Questions

The Flesch-Kincaid readability test is the most widely used formula for measuring how easy or difficult a text is to read. It produces two scores: Reading Ease (0-100, higher = easier) and Grade Level (US school grade). It factors sentence length and word syllable count to determine readability.

For general audience blog posts, aim for a Flesch Reading Ease score of 60-70 (8th-9th grade level). For B2B or technical content, 50-60 is acceptable. The key is matching your audience — financial content for executives should be easier to read than an academic paper, even if the subject is complex.

While readability scores are not a direct ranking factor, they strongly influence user engagement metrics (time on page, bounce rate, pages per session) that do affect rankings. Content that is easier to read keeps visitors engaged longer, which signals quality to Google.

Reading time is calculated using the industry average of 238 words per minute for English text. This factors in both reading speed and brief pauses for comprehension. Your actual reading time may vary based on content complexity and individual reading speed.

No. The Readability Checker works entirely in your browser. Your text is never sent to any server or stored anywhere. You can use it offline and as many times as you want — it is completely private and free.

Write content that reads well. Supablog writes at the right level for your audience.

Supablog's AI Writer produces content optimized for readability, engagement, and SEO — automatically matching your audience's reading level while keeping the brand voice intact.

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