What "reading level" actually measures
A reading level is an estimate of the school grade a reader needs to follow your text on the first pass. It is driven by the same two signals as every readability score: how long your sentences are and how long your words are. "Grade 9" does not mean your readers are in ninth grade — it means the text demands roughly that much reading skill.
Which grade for which audience
| Grade level | Reads like | Good for |
|---|---|---|
| 3–6 | Very easy | Broad public, instructions, kids |
| 7–9 | Plain, conversational | Most web copy, email, marketing, news |
| 10–12 | More demanding | Trade and business writing |
| 13–16 | College | Specialist, academic, technical |
| 17+ | Graduate | Research, legal, dense reference |
If you are writing for a general or online audience, grade 7–9 is the sweet spot: clear enough to scan, not so simple it feels thin.
Why a consensus, not one number
Flesch-Kincaid, Gunning Fog, SMOG, and Coleman-Liau each weigh the signals slightly differently — and SMOG was designed for samples of 30+ sentences, so it is shaky on short text. ClearPen shows all four and averages the reliable ones into a consensus grade, which is steadier than trusting any single formula. On short passages, treat the SMOG figure as low-confidence (it is marked with an asterisk).
Want to lower your grade level? Two moves do most of the work: split the highlighted long sentences and swap long words for plain ones. Cutting passive voice helps too.
Frequently asked questions
How do I find the reading level of my text?
Paste it above. ClearPen computes Flesch-Kincaid, Gunning Fog, SMOG, and Coleman-Liau and reports a consensus grade — a U.S. school year, so "grade 8" means a typical 13–14-year-old could read it comfortably.
What reading level should I write at?
For a general or online audience, grade 7–9 is a good target. Plain-language public communication often aims for grade 6–8. Specialist and academic writing runs higher, which is fine for specialist readers.
Why report several formulas instead of one?
Each weighs sentence and word length differently, and SMOG is only reliable on longer passages. Four formulas plus a consensus stop a single quirky number from misleading you, especially on short text.