The Flesch Reading Ease score turns "is this easy to read?" into a number from 0 to 100. The higher the score, the easier the text. It is built into Microsoft Word, used by governments to keep public information clear, and quietly relied on by content teams everywhere. Here is what the number actually means and what to aim for.
How the score works
Flesch Reading Ease rewards short sentences and short words. The formula uses two ratios: average sentence length (words per sentence) and average word length (syllables per word). Long sentences and multi-syllable words push the score down; short ones push it up. That is the whole idea — it is a proxy for effort, not for quality or correctness.
Reading Ease = 206.835 − 1.015 × (words / sentences) − 84.6 × (syllables / words)
What is a good score?
- 90–100 — very easy. Understood by an average 11-year-old.
- 60–70 — plain English. The sweet spot for most web content and business writing.
- 30–50 — difficult. Typical of academic or technical prose.
- 0–30 — very hard. Legal and scientific writing lives here.
The Flesch-Kincaid Grade Level
There is a companion metric you will often see beside the ease score: the Flesch-Kincaid Grade Level. Instead of a 0–100 scale, it maps your text to a US school grade — a grade level of 8 means an eighth-grader could read it. Many publications target grade 7–8 for general audiences. The two scores use the same inputs, just expressed differently.
How to raise your score
- Split long sentences. One idea per sentence is the fastest win.
- Prefer short words — "use" over "utilise", "help" over "facilitate".
- Cut filler: "in order to" becomes "to"; "due to the fact that" becomes "because".
- Read it aloud — anywhere you run out of breath is a sentence to split.
You do not have to guess. Paste your draft into the Readability Checker to see the Flesch Reading Ease score, the Flesch-Kincaid grade, and sentence and word statistics instantly. Edit a few long sentences, watch the score climb, and stop when you hit the 60–70 range for your audience.
Applying the score where it counts
| Audience | Flesch target | How |
|---|---|---|
| Consumer landing pages | 60–70 | Short sentences, plain words |
| General blog content | 60–80 | Talk-don’t-write tone |
| Technical docs | 30–50 | Terms stay, structure helps |
| News briefs | 70+ | Active voice, simple verbs |
The score punishes long sentences and multi-syllable words, so the quick wins are structural: split one idea per sentence, prefer “use” over “utilize”, and let headings carry the detail. It is a heuristic, not grammar law — a paragraph about myocardial infarction is allowed to be hard to read. Use it to flag pages that drift from their audience, not to flatten every sentence to a news brief.
Tools mentioned
Readability Checker
Measure how easy your text is to read with Flesch Reading Ease and Flesch-Kincaid grade level.
Word & Character Counter
Live word, character, sentence and reading-time counts.
Text Summarizer
Condense long text into a short extractive summary by ranking sentences by keyword frequency.
