Flesch–Kincaid grade

Client

U.S. grade level from words, sentences, and syllables.

FK grade ≈ 9.9

Nearby workflows on Toolcore

  • Coleman–Liau index — CLI grade level from letters, sentences, and words counts. for the next text or markup step in your edit loop.
  • SMOG index (simple) — Approximate SMOG readability from sentence and polysyllable counts. for the next text or markup step in your edit loop.
  • Reading time calculator — Estimate minutes to read pasted prose from word count and WPM—rough blog-style hint, browser-only. for the next text or markup step in your edit loop.
  • Word & character count — Words, characters, lines, and reading time—paste any text, all client-side. for the next text or markup step in your edit loop.

About this tool

Standard U.S. school grade readability estimate.

Common use cases

  • Flesch–Kincaid grade for quick local checks without uploading data.
  • Copy results into tickets, docs, or classroom notes.

Common mistakes to avoid

  • Unexpected input shape

    See the intro and how-to notes for accepted formats.

FAQ

Is processing local?

Yes—this runs entirely in your browser.

Agent prefill?

Use q or qb for the main text field when supported.

More tools

Related utilities you can open in another tab—mostly client-side.