Readability & Reading Level Checker
Readability & Reading Level Checker works as a free Flesch-Kincaid calculator and more: it scores your text against five standard readability formulas — Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog Index, SMOG Index and Coleman-Liau Index — so you can see exactly what grade level your writing sits at. It also counts sentences, syllables, complex words and estimates reading time.
Last updated: July 2026
To check the reading level of your text, paste it here — you instantly get the US school grade level it's written at (Flesch-Kincaid Grade) and a Flesch Reading Ease score from 0–100 (higher = easier), plus Gunning Fog, SMOG and Coleman-Liau scores and an estimated reading time. All formulas run in your browser — no text is uploaded.
🔒 All analysis runs in your browser using standard readability formulas — your text never leaves your device.
How to use Readability & Reading Level Checker
- Paste your text into the box.
- Read your scores across all five readability formulas.
- See the grade level, reading ease and estimated reading time.
Frequently asked questions
How do I check the reading level of my text?
Paste the text on this page — the Flesch-Kincaid Grade Level tells you the US school grade (e.g. 8 = readable by an average 8th grader), and the other four indexes give the same answer from different angles. No sign-up, and the text never leaves your browser.
What is a good readability score?
For general audiences, aim for Flesch Reading Ease 60–70 (8th-9th grade). For academic or technical content, 30–50 is normal.
How does the Flesch-Kincaid calculator work?
It calculates grade level from average sentence length and average syllables per word. Grade 8 = easy to read for most adults. Flesch Reading Ease uses the same inputs but maps them to a 0–100 ease scale.
Is my text uploaded?
No — everything runs in your browser. Your text never leaves your device.
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