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Free Flesch-Kincaid Calculator for PDFs & Text
Upload a PDF or paste text to calculate its Flesch-Kincaid Grade Level (FKGL) and see how easy your material is to read.
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What is Flesch-Kincaid Grade Level?
FKGL estimates the U.S. school grade level needed to read a text. It uses sentence length and syllables per word to help you judge whether your writing fits your audience.
เรียนรู้เกี่ยวกับมาตรฐานการอ่านง่ายHow is the score calculated?
ระดับชั้น = 0.39 x (คำ / ประโยค) + 11.8 x (พยางค์ / คำ) - 15.59
How should I use the result?
Readability evaluators offer a starting point. Your readers’ background knowledge, the subject, and the way you organize information also affect how easy a text is to understand.