# Free Grade Level Checker

> A grade level checker estimates the US school grade a reader needs to follow your writing. Humanit’s free checker runs five published formulas — Flesch–Kincaid, Gunning Fog, SMOG, Coleman–Liau, and ARI — and reports every score plus their consensus, live in your browser.

**URL:** https://humanit.app/tools/grade-level-checker  ·  **Updated:** August 2026  ·  Humanit

See the school grade your writing reads at — five formulas and their consensus, not one black-box number. Free, instant, private.

## How it works

1. **Paste your text** — Type or paste your text into the grade level checker above.
2. **See results instantly** — The numbers update live as you type — there’s no button to press.
3. **Edit and re-check** — Tweak your text and watch the results change in real time.

## Why five formulas instead of one

Each readability formula weighs the same raw ingredients — sentence length, word length, syllables — differently, so they routinely disagree by a grade or two on the same text. A tool that shows one number is quietly picking a formula for you and hiding the spread. This checker shows all five scores plus their median as the consensus: the median barely moves when one formula overreacts, and seeing the spread tells you how much to trust the estimate. All of them are estimates of reading effort, not verdicts on quality.

## What grade level should you aim for

For a general audience — blogs, product copy, emails, news-style writing — grades 7 to 9 is the zone where nearly every adult reads comfortably and nothing feels dumbed down. Specialist writing can legitimately run higher because its readers bring context and vocabulary with them; the real question is never “is grade 12 bad?” but “will my actual reader follow this the first time?”. Write for the reader you have, then check the number.

## How to bring the grade down

Two edits move every formula at once: split long sentences, and swap multi-syllable words for short ones — “helps” for “facilitates”, “end” for “conclusion”. Cutting filler phrases (“in order to”, “due to the fact that”) does both at the same time. This page grades your text against school levels; the readability checker scores the same ingredients as a 0–100 ease score — two lenses on the same question, and it’s worth knowing both numbers for anything important.

## Free, unlimited, and private

The grade level checker is free with no sign-up and no limit on how much text you process. Because it runs entirely in your browser, your text is never sent to a server, stored, or used to train any AI — it never leaves your device. When you’re ready to do more with your writing, Humanit’s AI humanizer and AI detector are one click away.

**Grade level → who reads it comfortably**

| Grade | Reader | Typical writing |
| --- | --- | --- |
| 5–6 | Ages 10–12 | Children’s nonfiction, simple how-tos |
| 7–9 | Ages 12–15 | Blogs, news, product copy — the web’s sweet spot |
| 10–12 | Ages 15–18 | Serious journalism, business reports |
| 13–16 | College | Academic essays, technical docs |
| 17+ | Graduate | Research papers, legal writing |

## FAQ

**What is the Flesch–Kincaid grade level?**

The most widely used readability grade: it converts average sentence length and syllables per word into a US school grade. A score of 8 means a typical 8th grader — age 13–14 — could follow the text.

**Why do the five formulas give different grades?**

They weigh word length against sentence length differently, and SMOG in particular is designed for samples of 30+ sentences, so short texts stretch it. That is exactly why the checker shows the spread and uses the median as its consensus.

**Is a lower grade level always better?**

No — it should match your reader. Grade 7–9 suits a general audience, while expert readers handle more density without noticing. Lower isn’t smarter or simpler; it’s just less friction.

**How is this different from the readability checker?**

Same engine, different lens: the readability checker reports a 0–100 reading-ease score, while this page translates your text into school grades across five formulas and their consensus.

**Do I need an account?**

No. There’s no sign-up and no install — open the page and start typing.

**Does it work on mobile?**

Yes — it works in any modern browser on phone, tablet, or desktop.

## Related pages

- [Word Counter](https://humanit.app/tools/word-counter) ([markdown](https://humanit.app/tools/word-counter.md))
- [Character Counter](https://humanit.app/tools/character-counter) ([markdown](https://humanit.app/tools/character-counter.md))
- [Sentence Counter](https://humanit.app/tools/sentence-counter) ([markdown](https://humanit.app/tools/sentence-counter.md))
- [Paragraph Counter](https://humanit.app/tools/paragraph-counter) ([markdown](https://humanit.app/tools/paragraph-counter.md))
- [AI Humanizer](https://humanit.app/humanize) — Rewrite AI text to read human. ([markdown](https://humanit.app/humanize.md))
- [AI Detector](https://humanit.app/detect) — Check if text reads as AI-written. ([markdown](https://humanit.app/detect.md))

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- **Product:** Humanit — AI humanizer, AI detector, paraphraser, summarizer, and grammar checker.
- **Free tier:** the AI detector is completely free with no account; the other tools need a free account with 300 free words every month (resetting monthly on the signup date).
- **Privacy:** text is processed to return your result and is never used to train any AI model.
- **Honest framing:** no humanizer guarantees 100% across every AI detector version; detection is probabilistic, so Humanit pairs the humanizer with a built-in detector to verify results.
- **iOS app:** https://apps.apple.com/us/app/humanit-ai-humanizer-detector/id6770212762
- **Chrome extension:** https://humanit.app/extension (store: https://chromewebstore.google.com/detail/hhaibkndncoiagmmephelhbdaijicogp)
- **Contact:** adgan.business@gmail.com

_Last updated: June 2026._