Flesch-Kincaid Calculator
Calculate the Flesch-Kincaid readability grade level and reading ease score for any text.
Whether a piece of writing actually fits its intended audience's reading level isn't something to guess at, a children's book, a public health notice, and a legal disclaimer all need genuinely different reading levels, and Flesch-Kincaid is the established formula, based on sentence length and syllable count, that actually measures where a text falls. This tool calculates a text's Flesch-Kincaid grade level and reading ease score, giving an actual standardized number rather than a subjective impression of how readable something feels.
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Useful for confirming a children's book or a public-facing notice actually targets its intended grade level, checking whether a company's content meets a plain-language or an accessibility guideline requiring a specific reading level, or comparing two drafts' reading ease scores to see which one is genuinely easier to read.
Key features
- Clean interface
- Fast processing
- No signup required
- Works offline