The short version: paste your text into an analyzer, check average sentence length and word length, and shorten what's long. Readability is measurable — and fixable.
"Make it more readable" is the vaguest feedback in writing. But readability isn't actually mysterious: decades of research boil it down to a few measurable things, mostly sentence length and word complexity. You can check both in seconds — and then you know exactly what to fix instead of rewriting blindly.
The metrics that matter
Paste your draft into the free text analyzer and you'll get a full breakdown. Here's how to read it:
Average words per sentence. The single most useful readability number. Every major readability formula (Flesch, Gunning Fog, all of them) leans heavily on sentence length, because long sentences tax working memory. General guidance:
- Under 15 words — very easy; typical of marketing copy and children's books
- 15–20 words — the sweet spot for general audiences
- 20–25 words — fine for educated readers, tiring for everyone else
- Over 25 words — most readers will need to re-read
Average characters per word. A proxy for word complexity. Shorter words are usually simpler, more common words. If your average is creeping up, you're probably using jargon or nominalizations ("utilization" instead of "use").
Reading time. Computed at ~225 words per minute, the widely used average for adult silent reading. Useful for right-sizing: a 900-word article is a 4-minute read; if your audience gives you 2 minutes, cut it.
Speaking time. At ~140 words per minute — essential for scripts, presentations, and video voiceovers. A 10-minute talk is roughly 1,400 words. Write more than that and you'll be rushing or cutting on stage.
Keyword density. The top 10 content words with their frequency and percentage. Two uses: for SEO, checking your target terms appear naturally (1–3% is the healthy range; far above that reads as stuffing); for editing, spotting words you overuse. Every writer has crutch words — density tables expose yours.
Sentences and paragraphs. Structural overview. A 600-word block with 3 paragraphs is a wall of text; the same words in 8 paragraphs breathe.
What the analyzer doesn't do (honestly)
It doesn't give you a single "reading grade level" score like Flesch-Kincaid. That's deliberate-ish: single scores hide what's actually wrong. Knowing your average sentence is 28 words tells you exactly what to fix; knowing you're "grade 14" doesn't. The raw metrics are the actionable layer — formulas are just weighted combinations of these same numbers.
How to fix what the numbers show
Long sentences → split them. The highest-leverage edit in writing. Find sentences over 30 words and break them in two. Nothing else improves readability as fast.
Long words → use the short version. "Utilize" → "use." "In order to" → "to." "Due to the fact that" → "because." Keep the technical terms your audience knows; cut the padding around them.
High keyword density → vary your language. If one word is at 6%, you're either stuffing or you have a crutch word. Synonyms, pronouns, and restructuring fix it.
Long reading time → cut or restructure. If the piece must be long, add subheadings every 200–300 words, front-load the conclusion, and make skimming rewarding. Most readers skim; readable structure serves skimmers and deep readers alike.
Wall-of-text paragraphs → break them up. One idea per paragraph. On screens especially, short paragraphs dramatically improve the perceived readability even when the words are identical.
Readability by audience
- General public / web: aim for 15–18 words per sentence, plain words, short paragraphs.
- Business / professional: 18–22 is fine; your readers are educated but busy. Clarity still wins.
- Academic / technical: longer sentences are tolerated, but precision matters more than complexity. Don't confuse the two.
- Non-native speakers: shorter sentences, common words, avoid idioms. This audience is larger than most writers realize.
Readability and SEO: the real connection
You'll see readability scores marketed as ranking factors. The honest version: search engines don't rank you for a Flesch score. What they measure — through engagement signals like time on page, bounce rate, and whether searchers click a different result — correlates heavily with readability. People stay on pages they can read; they leave pages they can't.
So the SEO play isn't "optimize for a score." It's:
- Match search intent fast. The reading-time metric tells you if your article fits the query. A "quick answer" query wants 2 minutes, not 12.
- Make skimming rewarding. Subheadings, short paragraphs, bullet lists. Most visitors skim first and commit second — structure is what converts skimmers to readers.
- Keep keyword density natural. The analyzer's density table shows whether target terms appear at healthy 1–3% levels. Stuffing hurts both readers and rankings; natural variation ("text analyzer," "readability tool," "check reading level") reads better and ranks better.
- Write for the featured snippet. Clear, direct answers in 40–60 words — which is also just good readable writing.
Readable content earns the engagement that search engines reward. The metrics are the diagnostic; the ranking is the side effect.
The workflow
Write the draft. Paste it into the text analyzer. Note the two averages and the reading time. Fix the worst offenders — split the longest sentences, swap the puffed-up words. Re-check. Two passes like this will measurably improve almost any draft, and you'll start internalizing the patterns until you need the tool less.
Readability isn't dumbing down. It's respecting the reader's time and attention — and the numbers tell you exactly where you're wasting either.
