FLIESMake an emoji puzzleCross words on a sliding grid — worldwide leaderboardWORD+18Play the word gameWeeks, sleeps, weekends or seconds — for 4 people⏱️Start a countdownChange, discounts, and the traps that cost you money25%60%100%Crunch a percentage2 minutes, 3 templates — nothing leaves your browserMake an invoiceDrag two 24-hour strips — daylight saving handled🕐🕓🕖🕙Compare time zones12 full-screen styles that bloom to your music🎨Visualize colorA fresh 12 every day, plus friend challenges by link🪧Play daily triviaThe Electric Slide, count by count, with a live band🤠Learn line dancing
The tools, in full
A number is easy to copy. A working tool is not. These are the flagship apps — open one, change the inputs, watch it respond. All free, all in the browser.
3D Workshop
Turn any 3D file into something you can build — unfold STLs into papercraft and cardboard patterns, slice them into stackable layers, loft photos into models, or sculpt a solid from dots. Four free tools, no install.
★ Open the workshop →TiltLab
Tilt the plate, roll the steel ball. Infinite seeded mazes, a Daily Maze the whole world shares, wings, potholes and a ball garage — and a challenge link to the exact maze that beat you.
★ Play TiltLab →Jigsaw Studio
Play the jigsaws from our puzzle videos right in your browser — drag, rotate, snap — or upload any photo and cut it into a real grid. Nothing leaves your device.
★ Start puzzling →Instrument Tuners
Real chromatic tuning through your microphone — guitar, bass, ukulele, violin, cello, banjo, mandolin and xylophone, each with its own string-by-string tuner.
★ 8 instruments, one real pitch engineStart tuning →Metronome
A full practice metronome in the browser — set any tempo, tap it in, choose your accents, and keep time with a pendulum you can actually watch.
★ Tap your tempo, it keeps you honestStart the metronome →Tarot Spread Dealer
Draw from the full 78-card deck and deal a real spread on the page — every card explained, no sign-up, no mysticism required.
★ All 78 cards, dealt liveDeal a spread →Poker Hand Dealer
Deal five-card hands and see where each lands among the 2,598,960 possibilities — the odds of every rank, made touchable.
★ 2,598,960 possible handsDeal a hand →Crossword Maker
Make a real crossword puzzle from your own words and clues — the grid builds itself, then print it or share it.
★ Build and print your own gridMake a crossword →Life Expectancy Calculator
An estimate built from real actuarial tables — see how the number shifts with age, sex and country, and what the averages actually mean.
★ Your years, in honest numbersOpen calculator →Play Dominoes
A full game of dominoes against the computer — Draw or Block rules, an honest opponent, and a board that snakes across the felt as the line grows. No sign-up.
★ 28 tiles, 168 dots, one honest opponentPlay dominoes →Cursor Designer
Try all 36 CSS cursors live in your own OS style, then draw a pixel cursor, pick its size and hotspot, and copy it as one line of real CSS.
★ 36 live cursors + your own pixel artDesign a cursor →Penalty Shootout
Take five spot-kicks past a pacing defender, then go in goal and dive to save — best-of-five with sudden death, a keeper you steer yourself, and fullscreen. No sign-up.
★ Sudden death included — and you steer the keeperPlay the shootout →Free Invoice Generator
Make a professional invoice in two minutes — three templates, your logo, and tax rules for Australia, the UK, USA, NZ and Canada built in. No signup, no watermark, and nothing you type ever leaves your browser.
★ 2 minutes, zero watermark, 5 countries of tax rulesMake an invoice →Emoji Typewriter
Paste any text and watch it retold with maximum emoji — a 735-word dictionary, a density slider from light sprinkle to full rebus, and one-tap copy for your group chat.
★ A 735-word emoji dictionary at full powerEmojify my text →Emoji Saying Maker
Build ⏰🪰 = TIME FLIES rebus puzzles with candy tiles, download a share card, hide the answer for challenge mode — then test yourself in guess-the-saying.
★ Challenge mode hides the answerMake a puzzle →Percentage Calculator
Four percentages in one tool — change, % of a number, X-is-what-%, and discounts. With the percentage traps that quietly cost you money.
★ 4 calculators in one toolOpen calculator →Time Zone Calculator
Drag two 24-hour strips to compare your time with anywhere on Earth. Daylight saving handled automatically.
★ Daylight saving handled automaticallyOpen calculator →Until Calculator
Birthdays 🎂, holidays 🎄, deadlines 🎯, due dates 🤰 — track every countdown that matters for up to four people, in weeks, sleeps, weekends or seconds.
Tile Calculator
Work out exactly how many tiles a room needs — shape, laying pattern, grout joint and wastage all handled.
★ Pattern, grout and wastage handledOpen calculator →Euro Money Game
A coin-counting game for all ages — pick a piggy bank, jar or vault and learn to pay any amount with the fewest coins.
★ The fewest-coins trainerPlay the game →Monster Maker
Build your own creature from 22 million combinations — roll one up, feed it, dress it, give it arms and a hat, then share it with a short code.
★ 22,020,096 combinations and countingBuild a monster →Unit Converter
Length, weight, volume, temperature and dozens more. Type a number, get every conversion at once.
★ Every conversion at onceStart converting →HowManyColors Jnr
Twelve full-screen visual styles that fly and bloom to your music — including a wisp that chases every note. Built for kids, quietly mesmerising for everyone.
★ 12 audio-reactive stylesLaunch app →HowManyBeats Pro
A ten-track drum machine with swing, FX and WAV export. No sign-up, no download.
★ WAV export, no sign-upOpen beat machine →ProPianoKeys Junior
All 88 keys, real polyphonic chords and a sustain pedal — playable straight from the page.
★ 88 keys, real polyphonyPlay piano →The Listening Game
Hear an English word, tap the picture — endless ear training that adapts to you.
★ Endless rounds that adapt to your earStart language learning →How Many Words Can You Fit?
Drop a word, then cross more onto it in a sliding grid. Long words, rare letters and three-way crosses score bonuses — submit your best and climb a worldwide leaderboard.
★ Climb a worldwide leaderboardPlay the word game →Trivium
Trivia at the crossroads — a daily 12, pick-your-category quick play, and friend challenges by share link. Every answer links to the full howmany.pro page behind it.
★ A fresh 12 every single dayPlay Trivium →Learn Line Dancing
An animated dance studio in your browser — boot prints step through the Electric Slide, Cupid Shuffle and Cowboy Boogie count by count, with a live band and spoken count caller. Slow it down, learn it, dance it.
★ A spoken count caller keeps you on stepStart dancing →ProRecorder Player
Every recorder size with fingering charts and baroque pitch. Currently being built.
★ In the workshop nowLearn moreAnswers, with depth
Anyone can hand you a number. We show the working — the contradictions, the second opinions, the part a search result quietly skips. A taste of the library, 531+ pages strong:
How many squares on a chessboard?
204 — not 64. The other 140 are the bigger squares hiding inside.
How many Pokémon types are there?
18 — and three of them only exist because the original chart was broken.
How many bones in the human body?
206 in adults. You were born with closer to 300 — some fuse as you grow.
How many galaxies in the universe?
2 trillion — a figure revised sharply upward in 2016.
How many moons does Saturn have?
146 confirmed — it overtook Jupiter, and the count keeps moving.
How many piano keys are there?
88 — and there is a real reason it stopped there.
How many types of cheese are there?
1,800+ worldwide — France alone claims more than 400.
How many languages are spoken in the world?
7,000+ living languages — and roughly one dies every few months.
How many countries in the world?
195 — but the UN, FIFA and the Olympics all count differently.
How many continents are there?
7 — or 6, or even 4, depending where you went to school.
How many stars in the Milky Way?
Up to 400 billion — counted by weighing the galaxy, not by looking.
How many neurons in the brain?
86 billion — not the 100 billion the textbooks repeated for decades.
How many teeth do adults have?
32 — if your wisdom teeth ever bother to show up.
How many legs does a spider have?
8 — and usually 8 eyes that mostly do very little.
How many teeth does a shark have?
Tens of thousands in a lifetime — a conveyor belt of replacements.
How many eyes does a bee have?
5 — the two big ones, plus three on top you never noticed.
How many chambers in a human heart?
4 — and the order they fire in is the whole story.
How many pyramids are in Egypt?
100+ known — and neighbouring Sudan has even more.
How many zeros in a billion?
9 — unless you were taught the long scale, and many people were.
How many cards in a standard deck?
52 — plus the two jokers nobody can agree on.
How many cards in a tarot deck?
78 — and you can deal a real spread right on the page.
How many tiles in a Scrabble set?
100 — including two blanks worth zero points and endless arguments.
How many notes in an octave?
12 — a compromise that took centuries of tuning wars to settle.
How many types of pasta are there?
350+ named shapes — each with a sauce it secretly prefers.
How many dominoes in a standard set?
28 tiles, 168 dots — then the computer challenges you to a game.
📚…and 506+ moreBrowse everything →Live Leaderboard Activity
Recent scores from the community playing "How Many Words Can You Fit?".
Explore by subject
Six broad areas, 26 categories underneath them — from the human body to gaming to language learning.
Science & Nature
The body, biology, space and the animal kingdom
Browse →Arts & Entertainment
Music, gaming, film, sports and food culture
Browse →Numbers & Measures
Time, measurement, money and technology
Browse →Language & Culture
Days, months and numbers across 20+ languages
Browse →Health & Lifestyle
Calories, fitness, pregnancy, longevity and home
Browse →World & Society
Countries, populations, history and mythology
Browse →HowMany.pro answers the questions people genuinely type into a search bar — and backs each one with research, sources and, wherever it helps, a tool you can use. New pages and apps go up every week.
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