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Free, fast, private calculators for writing, publishing, making and worldbuilding — readability scores, text analysis, pricing and project math. No signup.
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 & editing
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 nowBook Length & Writing Goal Planner
Word count → daily target, deadline, print pages.
Try nowComic Script Page-to-Panel Pacing Calculator
Panels, dialogue & action density per page.
Try nowScript Read Time / Voiceover Timer
WPM-aware script → audio minutes (with pauses).
Try nowScreenplay Screen-Time Estimator
Adjusted runtime — action vs. dialogue density.
Try nowWeb Novel Release Pacing Planner
Will my Royal Road backlog run dry?
Try nowGenerators & word games
Scattergories 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 nowTabletop & worldbuilding
Fantasy Travel Time Calculator
Distance × pace × terrain → days, hours, rations.
Try nowFantasy Calendar Generator & Date Converter
Build a custom calendar; add days to find dates.
Try nowDice Pool Probability Calculator
Odds, mean, and bell curve for any polyhedral pool.
Try nowFantasy Currency & Economy Balancer
Anchor your economy to a baseline meal.
Try nowConlang Syllable & Phonotactics Checker
Score invented words against your sound rules.
Try nowSci-Fi Comms & Orbital Delay Calculator
Earth → Mars radio latency, conversation lag.
Try nowTTRPG Settlement Demographics Calculator
Pop. → gold limit, blacksmiths, trade demographics.
Try nowFantasy Bloodline & Trait Calculator
Punnett square for fictional traits.
Try nowWargame Match Time Predictor
Army points × players → real-world game length.
Try nowDice Bag Capacity & Weight Estimator
Volume + grams of your polyhedral hoard.
Try nowSci-Fi Planet Gravity & Weight Converter
Custom planet → surface g, weight, jump height.
Try nowTTRPG Encounter Combat Pacing Predictor
Players × monsters → minutes at the table.
Try nowTCG Booster Pack Drop-Rate Calculator
Packs to pull a rare with 95% confidence.
Try nowGame dev & streaming
Sprite Sheet & VRAM Budget Calculator
Optimal grid + VRAM footprint for 2D animations.
Try nowRetro Game ROM / RAM Budget Calculator
Game Boy / NES / Genesis storage gauge.
Try nowIndie Game Audio File Size Estimator
WAV / MP3 / OGG storage budget per minute.
Try nowStream / OBS Layout Pixel Budgeter
Webcam + overlay sizing for 1080p / 1440p / 4K.
Try nowPricing & selling your work
3D Print Cost & Profit Estimator
Filament, power, wear → suggested Etsy price.
Try nowLaser Cutter Job Cost & Margin Calculator
Glowforge / xTool job pricing for Etsy sellers.
Try nowEtsy Fee & Profit Calculator
True per-sale profit after Etsy's cut.
Try nowKDP Royalty & Book Price Calculator
Ebook and paperback royalties, side by side.
Try nowACX Audiobook Royalty Calculator
Exclusive vs. non-exclusive, split with your narrator.
Try nowPrint-on-Demand Profit Calculator
Blank cost, platform fees, ads → real margin.
Try nowCandle Making Cost Calculator
Wax, fragrance, labor → per-candle cost.
Try nowSoap Making Lye & Cost Calculator
Cold-process lye, water, and batch cost.
Try nowSticker & Vinyl Decal Pricing Calculator
Materials, labor, markup → sticker price + bulk discounts.
Try nowEmbroidery Pricing Calculator
Stitch count + digitizing → per-piece embroidery price.
Try nowArt Commission Pricing Calculator
Piece type, extras, usage license → fair commission quote.
Try nowCraft Fair Profit Calculator
Booth fee, travel, COGS → real hourly wage.
Try nowFreelance Day Rate & Hourly Rate Calculator
Work backward from your income goal to an hourly and day rate.
Try nowMaker & workshop
Cosplay Fabric & Material Estimator
Capes, skirts, armor → yards / meters needed.
Try nowMiniature Paint Mix & Volume Calculator
Scale a custom paint recipe to your army size.
Try nowBPM → Delay & Reverb Time (ms)
Note divisions in ms / Hz for any tempo.
Try nowMiniature Scale & Terrain Converter
Real feet → 28mm, 32mm, HO, 1:35 model size.
Try nowResin & Epoxy Cost Calculator
Mold dimensions → resin volume, weight, and cost.
Try nowBoard & Batten Wall Calculator
Even batten spacing and material cost, instantly.
Try nowHerringbone & Chevron Tile Calculator
Tile, box, and cost counts with pattern waste built in.
Try nowDeck Board & Fastener Calculator
Board count, joist crossings, and fastener totals.
Try nowWallpaper Calculator with Pattern Repeat
Roll count that accounts for pattern repeat and waste.
Try nowEpoxy Garage Floor Coating Calculator
Kits needed, primer, and cost per sq ft.
Try nowFrench Drain Calculator
Gravel, pipe, and fabric for your trench.
Try nowRaised Garden Bed Soil Calculator
Soil volume, bags vs. bulk, and Mel's Mix.
Try nowLED Strip Power Supply Calculator
Right-size your PSU and catch voltage drop.
Try nowHome, tech & everyday
EV 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 now