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The Flesch-Kincaid Grade Level formula estimates the US school grade required to understand a text. The companion Reading Ease score (0–100) measures readability — higher scores mean easier reading.
Formel
- FK
- 206 — 206
Trinn-for-trinn guide
- 1FK Grade Level = 0.39 × (words/sentences) + 11.8 × (syllables/words) − 15.59
- 2FK Reading Ease = 206.835 − 1.015 × (words/sentences) − 84.6 × (syllables/words)
- 3Shorter sentences and simpler words both improve readability
- 4Syllables counted by detecting vowel groups in each word
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What is Grade Level?
The Flesch-Kincaid Grade Level formula estimates the US school grade required to understand a text. The companion Reading Ease score (0–100) measures readability — higher scores mean easier reading
How accurate is the Grade Level calculator?
The calculator uses the standard published formula for grade level. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.
What units does the Grade Level calculator use?
This calculator works with inches. You can enter values in the units shown — the calculator handles all conversions internally.
What formula does the Grade Level calculator use?
The core formula is: FK Grade Level = 0.39 × (words/sentences) + 11.8 × (syllables/words) − 15.59. Each step in the calculation is shown so you can verify the result manually.
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