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免費戴爾-查爾計算器
How easy is your material to read? Add an English passage and calculate its Dale-Chall readability score.
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What is Dale-Chall readability?
Dale-Chall estimates the U.S. reading-grade band needed to understand English prose. It combines sentence length with the percentage of words outside the Dale-Chall list of familiar words.
了解可讀性指標How is the score calculated?
分數 = 0.1579 x 困難字詞百分比 + 0.0496 x (單字數 / 句子數)
當困難字詞佔通篇超過5％時，公式會在分數中加上3.6365。
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.