Readability Score Checker

Paste any text to instantly get Flesch-Kincaid, Gunning Fog, and SMOG readability scores with grade-level explanations.

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Paste text on the left to see readability scores

Summary

Paste any text to instantly get Flesch-Kincaid, Gunning Fog, and SMOG readability scores with grade-level explanations.

How it works

  1. Paste or type your text into the input area.
  2. The tool counts sentences, words, syllables, and complex words (3+ syllables).
  3. Four readability formulas are applied to the same statistics simultaneously.
  4. Each score is displayed with a plain-English interpretation and recommended audience.
  5. Edit your text and the scores update automatically.

Use cases

  • Check whether blog posts or articles are accessible to your target audience.
  • Simplify legal, medical, or technical documents for general readers.
  • Verify that marketing copy meets readability guidelines for ad platforms.
  • Help students and academics calibrate writing complexity for assignments.
  • Audit e-learning content to match the reading level of learners.
  • Ensure government or compliance documents meet plain-language standards.
  • Compare readability before and after editing a draft.
  • Benchmark competitor content against your own writing.

Frequently Asked Questions

Last updated: 2026-06-09 · Reviewed by Nham Vu