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How to calculate Flesch-Kincaid reading level

Paste text — get Flesch-Kincaid grade level, reading ease score, and word stats.

Content aimed at eighth graders should not read like a graduate thesis. The Reading Level Calculator applies Flesch-Kincaid formulas to estimate US grade level and reading ease.

Try it — paste text for reading level

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How it works

  1. Paste text — article, essay, or marketing copy.
  2. Grade level — estimated US school grade to comprehend.
  3. Reading ease — 0–100 score (higher = easier).

Flesch-Kincaid formulas

Grade level depends on average sentence length and syllables per word. Short sentences and common words score lower (easier).

Related metrics

For reading time estimates, use the Reading Time Calculator.

The How to calculate Flesch-Kincaid reading level is free, runs locally, and never sends your data to a server. More education calculators at maratool.com.