Readability Score Checker

Calculate readability scores including Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog, SMOG, Coleman-Liau, and ARI.

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Flesch Reading Ease

34.9

Difficult (College)

Grade-level scores (US school grades)

Formula	Score	Reading Level
Flesch-Kincaid Grade	12.0	Grade 12
Gunning Fog Index	11.3	Grade 11
SMOG Index	5.7	Grade 6
Coleman-Liau Index	18.1	Grade 18
Automated Readability (ARI)	14.5	Grade 15

Sentences

3

Words

43

Complex words

6

Avg sentence

14.3w

Readability Score

The Readability Score Checker evaluates content difficulty using six standard formulas, helping you target the right reading level for your audience.

Which score should I use?

Flesch Reading Ease (0–100): Quick overall measure. Most online content aims for 60+ (8th-grade level or easier).
Flesch-Kincaid Grade: US school grade level needed. Aim for 7–8 for general audiences.
Gunning Fog: Estimates years of formal education needed. Aim for < 12 for blog content.
SMOG: Best for healthcare and government content. Targets a specific 100% comprehension threshold.

Tips to improve readability

Keep sentences under 20 words on average.
Prefer common 1–2 syllable words over multi-syllable jargon.
Break long paragraphs into 2–3 sentence chunks.
Use bullet points and headings to break up dense text.

The Readability Score Checker evaluates content difficulty using six standard formulas, helping you target the right reading level for your audience.

Which score should I use?

Flesch Reading Ease (0–100): Quick overall measure. Most online content aims for 60+ (8th-grade level or easier).
Flesch-Kincaid Grade: US school grade level needed. Aim for 7–8 for general audiences.
Gunning Fog: Estimates years of formal education needed. Aim for < 12 for blog content.
SMOG: Best for healthcare and government content. Targets a specific 100% comprehension threshold.

Tips to improve readability

Keep sentences under 20 words on average.
Prefer common 1–2 syllable words over multi-syllable jargon.
Break long paragraphs into 2–3 sentence chunks.
Use bullet points and headings to break up dense text.