Calculate readability, in one paste.
Score your writing with the formulas pros use — Flesch, Gunning Fog, SMOG, Dale–Chall and more. No signup. No ads in your face. Just answers.
- No signup
- Runs in your browser
- 18 languages
- Open formulas
Plain English for most adults (8th–9th grade).
- Words
- 241
- Sentences
- 14
- Avg words / sentence
- 17.2
- Syllables / word
- 1.48
Instant, in your browser
Calculations run locally as you type — no waiting on a server, no upload of your text.
Privacy-first
Your text never leaves your device. We don't log content, store cookies for tracking, or sell data.
The classic formulas, done right
Carefully implemented — including the canonical Dale–Chall word list and a battle-tested syllable counter.
18 languages
UI in 18 languages including RTL. Each tool tells you which input languages it actually supports.
Most popular
All tools →Flesch Reading Ease Calculator
Classic 0–100 readability score.
Try nowFlesch–Kincaid Grade Level Calculator
U.S. grade level for your text.
Try nowGunning Fog Index Calculator
Penalises complex (3+ syllable) words.
Try nowReading Time Estimator
How long does your text take to read?
Try nowReadability Consensus Score
Runs every classic formula and reports a consensus grade.
Try nowSyllable Counter & Analyzer
Total + per‑word syllable counts.
Try nowAll calculators
Readability scores
Flesch Reading Ease Calculator
Classic 0–100 readability score.
Try nowFlesch–Kincaid Grade Level Calculator
U.S. grade level for your text.
Try nowGunning Fog Index Calculator
Penalises complex (3+ syllable) words.
Try nowSMOG Index Calculator
Health & medical text grade level.
Try nowColeman–Liau Index Calculator
No syllables needed — just characters.
Try nowAutomated Readability Index (ARI) Calculator
Character‑based grade level estimate.
Try nowDale–Chall Readability Calculator
Uses the classic 3,000 familiar‑word list.
Try nowFry Readability Graph Calculator
Visual plot — sentences vs. syllables / 100 words.
Try nowRaygor Readability Graph Calculator
Like Fry but using letters per 100 words.
Try nowFORCAST Readability Calculator
For technical / non‑narrative text.
Try nowLinsear Write Readability Calculator
Easy vs. hard word weighting (Air Force origin).
Try nowLIX Readability Calculator
International (Swedish‑origin) index.
Try nowReadability Consensus Score
Runs every classic formula and reports a consensus grade.
Try nowSpache Readability Score
Primary-grade (K-4) readability formula.
Try nowMcAlpine EFLAW Readability
Readability for non-native English speakers.
Try nowPowers-Sumner-Kearl Readability
Elementary-grade readability score.
Try nowText analysis
Lexical Density Calculator
% content words vs. function words.
Try nowLexical Diversity (TTR) Calculator
Vocabulary variety — type‑token ratio.
Try nowSyllable Counter & Analyzer
Total + per‑word syllable counts.
Try nowPassive Voice Detector
Highlight passive sentences in your writing.
Try nowSentence Length & Variety Analyzer
Sentence length stats and variety score.
Try nowWord Frequency Analyzer
Top words with optional stopword filtering.
Try nowKeyword Density Analyzer
1/2/3-word phrase density with over-optimization warnings.
Try nowAdverb / -ly Word Detector
Find overused adverbs in your writing.
Try nowCliché Detector
Surface clichés, jargon, and dead metaphors.
Try nowFiller / Weak Word Detector
Flag intensifiers, hedges, and discourse fillers.
Try nowN-gram (Bigram / Trigram) Analyzer
Find common phrases of any length.
Try nowRepeated Words / Echo Finder
Find words used too close together.
Try nowHedge Word Detector
Score writing for confidence vs. hedging.
Try nowSentence Beginnings Analyzer
Score variety in sentence openings.
Try nowLetter Frequency Analyzer
Count letters and compare against expected English.
Try nowAI Text Pattern Detector
Linguistic patterns associated with AI-generated writing.
Try nowSentence Complexity Analyzer
Syntactic complexity, clause depth, and passive ratio.
Try nowText Cohesion & Transition Analyzer
How smoothly your paragraphs connect.
Try nowText Formality Analyzer
Score writing on a casual ↔ formal axis.
Try nowVocabulary Sophistication Analyzer
Average word length, rare-word %, CEFR estimate.
Try nowText Entropy & Predictability Analyzer
Shannon entropy of characters, words, and n-grams.
Try nowText Consistency Analyzer
Spelling, number, date, and hyphenation inconsistencies.
Try nowWriting utilities
Reading Time Estimator
How long does your text take to read?
Try nowCloze Test Generator
Turn text into fill‑in‑the‑blank exercises.
Try nowTweet / X Length Checker
Twitter-weighted character counter with thread split.
Try nowSEO Meta Tag Length Checker
Title + description pixel-width validator with SERP preview.
Try nowSentence & Paragraph Counter
Counts sentences, paragraphs, and length distribution.
Try nowHeadline Analyzer
Score a headline 0–100 with word-type breakdown.
Try nowScattergories Generator
Random letter + categories + timer for the classic party game.
Try nowCharades Word Generator
Random words and phrases to act out, with timer.
Try nowPictionary Word Generator
Random words to draw, by category, with timer.
Try nowTongue Twister Generator
Random tongue twister with read-aloud.
Try nowStory Prompt Generator
Random writing prompts across 8 genres.
Try nowEV Charging Cost & Road Trip Calculator
What EV charging really costs — and how it stacks up against gas.
Try nowPC Build Wattage & PSU Calculator
Size your PSU from your actual parts list, not a guess.
Try now3D Printer Electricity Cost Calculator
What your 3D printer actually costs to run, including standby draw.
Try nowSolar Generator Runtime Calculator
How long your portable power station will actually last.
Try nowNAS / RAID Usable Capacity Calculator
See real usable space before you buy drives.
Try nowWedding & Party Alcohol Calculator
Stock the bar without guessing or over-buying.
Try nowCatering & Party Food Quantity Calculator
How much food to order for a buffet or cocktail party.
Try nowFreelance Day Rate & Hourly Rate Calculator
Work backward from your income goal to an hourly and day rate.
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