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All tools
Every tool on Simple Online Counter, 113 in all: 72 counters, 18 calculators, 6 converters and 17 writing tools. Each one works in your browser, is free and needs no sign-up, and what you type stays on your device. The site map lists them all on one page, with every guide, and the counting guides explain the rules behind them.
Counters72
In 5 groups: everyday, sport & scores, fitness & health, work & field and faith. The online counter on the home page counts anything else.
Everyday7
The general-purpose counters: one number, many numbers, or counting on a timer.
- Online counterThe all-purpose counter. Any step size, any number of counters, negative values allowed.
- Tally counterTally marks in groups of five for surveys, stock takes and wildlife counts.
- Click counterA browser clicker that replaces the handheld thumb counter for door headcounts.
- Multi counterRun as many counters as you like at once, side by side in a grid.
- Auto counterCounts on its own from every 0.1 seconds to once an hour, and stops at your limit.
- Yes/No counterTwo options, a live percentage, and the sample size and caveats the percentage needs.
- Sticker album counterStickers you have and spares to swap, missing lists to copy, and the packs still to go from your count.
Sport & scores44
Scoreboards that know the rules of their game, not just two numbers that go up.
- Score counterA scoreboard for cards, darts and board games. One counter per player, negatives allowed.
- Pitch counterCount pitches, then get the rest days owed and the next eligible date.
- Golf scorecardStrokes per hole with the course handicap allocated by stroke index, net and Stableford.
- Badminton score counterRally scoring with the service court and doubles positions, for 3x21 and the 2027 3x15 system.
- Pickleball score counterThe 0-0-2 call with the right server and side, in side-out or 2026 rally scoring.
- Squash score counterPoint-a-rally to 11 with the server, the service box, hand out and lets.
- Penalty shootout counterFive kicks each that stop the moment a team cannot catch up, then sudden death.
- Basketball score counterPoints by period with team fouls and the bonus as FIBA, NBA, NCAA or high school count them.
- Baseball score counterBalls, strikes, outs and the line score, with foul bunts, dropped third strikes and walk-offs.
- Cricket score counterRuns, wickets and overs by legal balls, with wides, no-balls, free hits and the chase.
- American football score counterTouchdowns and the try at each level, with NFL, college and high school overtime rules.
- Boxing score counterThree judges' 10-point must cards and the verdict they give, split and majority draws included.
- Hockey score counterIce hockey goals and shots by period, with each league's overtime, shootout and standings points.
- Pool score counterStraight pool with the breaking foul and three-foul penalties, and 8-ball, 9-ball and 10-ball races.
- Rugby score counterUnion, sevens and league points, conversions tied to tries, golden point and bonus points.
- Soccer score counterGoals by minute, five subs in three windows, second yellows, extra time and aggregate.
- Table tennis score counterGames to 11 with the server named, doubles order, the swap at 5 and the expedite system.
- Tennis score counterLove to game with the server's court, every change of ends, tie-breaks and doubles order.
- Padel score counterThe 2026 Star Point, golden point or advantage, who serves and receives, and every change of sides.
- Volleyball score counterRally scoring with the six-position rotation, the next server, time-outs, subs and beach mode.
- Americano padel score counterRotating partners for 4 to 16 players, matches to a points total, and every player's running total.
- Field hockey score counterGoals by minute, a clock that stops, card timers in playing time, the 2026 card rules and shoot-outs.
- Free throw counterMake or miss, the percentage with its likely range, runs of makes, sets and make-50 goals.
- Futsal score counterAccumulated fouls per half with the 10 m kick, timeouts, a stopped clock and the red card timer.
- Handball score counter2-minute suspensions a goal does not end, the third a red card, three warnings and team time-outs.
- Judo score counterThe 2026 IJF rules: yuko back, a hold timer that scores itself, shido that never decide, golden score.
- Kabaddi score counterPlayers on court kept for you: revival in order, all outs, the bonus line, super tackle, do-or-die.
- Karate score counterWKF kumite 2026: senshu kept for you and lost in the last 15 s, the 8-point lead, chui to hansoku.
- Lacrosse score counterPenalty timers that know which one a goal releases, by code: high school, NCAA, PLL, box and sixes.
- Netball score counterWhose centre pass is next, kept through every break, plus the Super Shot and extra time.
- Roundnet score counterWho serves to whom under the 2026 IRF equal serving or the classic rules, with every rotation.
- Cornhole score counterCancellation scoring bag by bag, who pitches first next round, ACO Skins and house-rule busts.
- Water polo score counterExclusions a goal or the ball won ends early, personal fouls by cap, the possession clock, shootout.
- Wrestling score counterFolkstyle, freestyle or Greco: 3-point takedowns, riding time, the technical fall, overtime, criteria.
- Curling score counterPoints by end, the hammer next end, the mixed doubles decision, and the club scoreboard drawn for you.
- Fencing score counterHits on a bout clock in fencing time, the priority minute, cards by group and the 2026-27 P-cards.
- Gaelic football score counterGoals, two-pointers and points by the 2026 rules, a 45 valued by code, extra time, and the scorers line.
- Spades score counterBids and tricks per player, bags to the bag-out, nil and blind nil, and the disputed house rules as settings.
- Taekwondo score counterWT kyorugi 2026: 6 for a turning head kick, best of three rounds, the 15-point gap and the round tiebreak.
- Cribbage board counterA peg board for 2, 3 or 4: the play, then each hand in counting order to 121 or 61, with skunks and muggins.
- Euchre score counterWho called, alone or not, and the tricks: loners, euchres and the disputed house rules, plus a progressive tally.
- 500 score counterThe bid and the tricks, scored by the Avondale table: misère, slams and how a game is won as settings.
- Gin rummy score counterWho went down and both deadwood counts: undercuts, gin, boxes and shutouts, plus Hollywood and Oklahoma.
- Hearts score counterHearts and the queen per hand, refused until it adds to 26: five moon rules, the jack of diamonds, Black Maria.
Fitness & health7
Reps, laps, breaths and daily habits, where the count is part of the activity.
- Lap counterCount pool lengths, track laps and treadmill intervals without losing your place.
- Rep counterTrack reps and sets during a lifting session, with a step size for supersets.
- Click speed testMeasure your clicks per second over 1 to 60 seconds, with your personal best kept on-device.
- Habit counterCount toward a daily target and keep the streak, with a day boundary you choose.
- Breath counterCount breaths one to ten for meditation, with lost count recorded, or time breaths per minute.
- Craving trackerTime each urge, rate it 1 to 10, and log whether you rode it out or acted on it.
- Water intake counterDrinks logged in ml or oz by the cup you used, against a goal or a fluid limit, paced over your day.
Work & field5
Counting that produces a record someone else relies on: stock, occupancy, lab work.
- Differential counterEight keys for a manual white cell differential, nRBCs beside the total, an auto-stop and live percentages.
- People counterIn and out at a door, with live occupancy against a capacity and a fix for drift.
- Bird counterA row per species recording the high count, so a circling flock is not counted twice.
- Inventory counterA count sheet holding the book quantity beside the counted one, with the variance per line.
- Knitting counterRows, pattern repeats and a shaping schedule that names the increase rows and then ends.
Faith9
Counts with their own rules about when a day turns over and what completes a set.
- Tasbeeh counterA digital dhikr counter that stops at 33, 99 or 100 and keeps each dhikr separate.
- Omer counterThe 49 days of Sefirat HaOmer, in days and weeks, with the blessing state tracked.
- Mala counter108 beads to a round, credited as 100 or 108, with dorje and bell counter strings and a bell.
- Rosary counterPrayer by prayer through the decades, with the day's mysteries by the 2002 or the older schedule.
- Divine Mercy chaplet counterThe chaplet in Diary 476's order, a tap a prayer, with the novena from Good Friday kept day by day.
- St Michael chaplet counterThe nine salutations in the Raccolta's order, a tap a prayer, with the Michaelmas novena kept.
- Prayer rope counterA knot a tap on any chotki, services in Jesus Prayers, and the Optina 500 with its prostrations.
- Seven Sorrows rosary counterSeven sorrows of seven Hail Marys, a tap a prayer, the three for Mary's tears where your card puts them.
- Franciscan Crown counterSeven joys of ten Hail Marys and two to make 72, a tap a prayer, with the Pope's prayers and Lent's sorrows.
Calculators18
In 5 groups: percentages, fractions & decimals, statistics & random, health & fitness and counting & sport. The calculators page has a quick calculator of its own.
Percentages8
Percent of a number, increase, change and error, and percentages to and from fractions and decimals.
- Percentage calculatorNewWhat is P% of a number, X is what % of Y, and X is P% of what, with the working and exact answers.
- Percentage increase calculatorNewThe increase from one number to another, a number plus P%, and the original before an increase.
- Percentage change calculatorNewPercent change between two values, with percentage points and percent difference beside it.
- Percent error calculatorNewMeasured against accepted, signed or absolute, for one result or the mean of several trials.
- Percent to decimalNew12.5% = 0.125 and 0.5% = 0.005, with the fraction, per mille and basis points.
- Decimal to percentNew0.875 = 87.5%, and repeating decimals such as 0.(3) = 33.(3)% converted exactly.
- Fraction to percentNewA fraction, mixed number or score such as 17 out of 20 as a percent, repeats marked.
- Percent to fractionNewAny percent as a fraction in lowest terms: 37.5% = 3/8, 33 1/3% = 1/3, and why 33% is not.
Fractions & decimals3
Fraction sums with every step, and exact conversions between fractions and decimals, repeats included.
- Fraction calculatorNewAdd, subtract, multiply and divide fractions, mixed numbers and decimals with every step shown, exactly.
- Fraction to decimalNewLong division written out, the repeating block in brackets, and whether the decimal ends.
- Decimal to fractionNewExact fractions from decimals, repeating ones too, plus the closest simple and ruler fraction.
Statistics & random1
Averages from a list or a tally, and random numbers drawn without bias.
Health & fitness1
Body measures and fitness figures, with their limits stated plainly.
Counting & sport5
Calculators that start from a count: rest days after pitches, lengths in a swim, a tally as percentages.
- Occupancy calculatorMaximum people for a room from floor area and exit widths, by UK or US rules, and an occupancy rate.
- Pitch count rest calculatorA pitcher's week of outings: rest, three days in a row and each day's limit, by three rule books.
- Swim lengths calculatorLengths to distance and back for any pool, 33 1/3 m included, and a watch set to the wrong pool corrected.
- Tally to percentage calculatorCounts or a pasted list to fractions, percentages that add to 100 and pie angles, over the total you choose.
- Training volume calculatorSets x reps x weight with dumbbells, bodyweight and push-ups counted your way, and hard sets per muscle.
Converters6
In 3 groups: length, cooking and currency. The converters page has a unit converter of its own.
Length4
Millimetres to miles and every step between, metric and imperial, exact and with ruler fractions.
- Length converterNewmm, cm, m, km, inches, feet, feet and inches, yards and miles, all at once, exact, saying when it rounds.
- Height converterNewcm to feet and inches and back, rounded on the total so never 5 ft 12 in, with decimal feet caught.
- cm to inchesNewCentimetres to inches as a decimal and the nearest 1/16 inch on a ruler, with the gap in mm.
- Inches to cmNewInches and fractions to centimetres, exact, with a screen's 16:9 width and height from its diagonal.
Cooking1
Cups, spoons, millilitres and grams for real ingredients, with the cup size named.
Currency1
Money from one currency to another at a named reference rate, with its date.
Writing tools17
In 2 groups: counts & lengths and format & compare. The writing tools page estimates words from characters and pages.
Counts & lengths10
Words, characters, pages and what changed in an edit, counted the way you need them.
- Word counterWords, characters and sentences as you type, the count under other rules, sourced reading time, Flesch scores.
- Character counterCharacters with and without spaces, and as X, text messages, web forms and bytes count them, causes named.
- Words per page calculatorWords to pages and back from the font, size, spacing, paper and margins, your own text or a document.
- Book page count calculatorNewWords to printed book pages from the trim size, font and margins, with chapter starts, blanks and KDP's gutter.
- KDP cover size calculatorNewFull-wrap cover size, spine width and a template from the trim size, paper and page count, in inches and pixels.
- Book spine width calculatorNewSpine width from the page count and any printer's paper thickness, in inches, mm or PPI, with spine text fit.
- KDP margin calculatorNewKDP gutter, outside, top and bottom margins from the page count, trim size and bleed, with Word settings.
- Book trim size chooserNewA KDP trim size for your kind of book, with page limits by paper, large-trim flags and pages at each size.
- Edit counterWords kept, cut, added and moved between two drafts, and a Word file's tracked changes, counted in the browser.
- Webpage word countA page's main text against menus, header, footer and sidebars, words per heading, alt and link words apart.
Format & compare7
Sort, recase and compare text, generate words and format citations.
- Alphabetize a listA to Z word by word or letter by letter, by last name past Jr. and van, Mc with Mac, Room 2 before Room 10.
- Compare textTwo texts line by line, words or characters marked, invisible and look-alike characters named, similarity %.
- Capitalize sentencesFirst letters of sentences only, nothing lowered; Dr. and e.g. passed over, etc. listed to check, I and IJ.
- Random word generatorWords from the named 7,776-word EFF list by length and letters, no repeats, the words that fit counted.
- Citation generatorAPA 7, MLA 9 and Chicago 18 for books, articles, web pages and videos, the rule behind every part shown.
- Grammar checker21 named rules in the browser: a or an, could of, their is, repeats, spacing, US and UK spelling; nothing sent.
- AI detectorThe signals detectors weigh, measured and explained: sentence variety, vocabulary, repeats. No AI percentage.
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