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✍️TextWord CounterCount words, characters, sentences and paragraphs๐งฎCalculatorsLoan CalculatorMonthly payment and total interest๐งฎCalculatorsBMI CalculatorBody mass index๐
Date & TimeAge CalculatorExact age in years, months and days๐ฒGeneratorsPassword GeneratorStrong random passwords๐งฎCalculatorsPercentage CalculatorPercent of, percent change and more๐
Date & TimeTime Zone ConverterConvert a date and time between world time zones๐ปDeveloperJSON FormatterBeautify, minify and validate JSON
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๐ฌ Media tools (12)
Tools for journalists, producers, editors and directors: video, audio, timecode, subtitles and headlines.
๐ฌMediaVideo File Size CalculatorEstimate video size from bitrate and duration๐ฌMediaTimecode to Frames ConverterConvert HH:MM:SS:FF timecode to frames๐ฌMediaFrames to Timecode ConverterConvert a frame count to HH:MM:SS:FF๐ฌMediaVideo Bitrate CalculatorBitrate needed to fit a target file size๐ฌMediaScreenplay Page Count CalculatorEstimate script pages and runtime๐ฌMediaSpeaking Time CalculatorHow long a speech or voice-over will take๐ฌMediaHeadline AnalyzerCheck headline length and strength๐ฌMediaAudio File Size CalculatorUncompressed audio (WAV) size๐ฌMediaShutter Speed CalculatorShutter speed from frame rate and angle๐ฌMediaPhoto Print Size CalculatorPrint size from pixels and DPI๐ฌMediaMegapixel CalculatorMegapixels from image dimensions๐ฌMediaSubtitle Reading Speed CalculatorCharacters per second for captions
๐ฑ Social tools (8)
Grow and measure your audience: platform limits, engagement, ad metrics, usernames and stylish text.
๐ฑSocialSocial Media Character Limits CheckerCheck a post against popular platform limits๐ฑSocialEngagement Rate CalculatorLikes, comments and shares per follower๐ฑSocialYouTube Earnings EstimatorEstimate revenue from views and RPM๐ฑSocialFollower Growth CalculatorProject followers from a daily growth rate๐ฑSocialCPM, CPC and CTR CalculatorAdvertising cost metrics๐ฑSocialROAS CalculatorReturn on ad spend๐ฑSocialFancy Text GeneratorStylish Unicode text for bios and posts๐ฑSocialUsername GeneratorUnique username ideas from a keyword
✍️ Text tools (38)
Count, clean, compare and transform text in seconds.
✍️TextWord CounterCount words, characters, sentences and paragraphs✍️TextCase ConverterUPPER, lower, Title and Sentence case✍️TextReverse TextFlip any text backwards✍️TextRemove Duplicate LinesKeep only unique lines✍️TextSort LinesSort lines alphabetically✍️TextRemove Extra SpacesClean spaces and blank lines✍️TextSlug GeneratorMake clean URL slugs✍️TextText to BinaryConvert text to binary and back✍️TextLorem Ipsum GeneratorPlaceholder paragraphs✍️TextPalindrome CheckerCheck if text reads the same backwards✍️TextFind and ReplaceReplace text in bulk✍️TextReading Time CalculatorEstimate reading and speaking time✍️TextText RepeaterRepeat text many times✍️TextLine CounterCount lines in text✍️TextAdd Line NumbersNumber every line of text✍️TextMorse Code TranslatorText to Morse code and back✍️TextCaesar CipherShift letters to encode or decode✍️TextVowel CounterCount vowels and consonants✍️TextAnagram CheckerAre two words anagrams?✍️TextAcronym GeneratorMake an acronym from a phrase✍️TextText Case Styles ConvertercamelCase, snake_case, kebab-case and more✍️TextWord Frequency CounterSee how often each word appears✍️TextRemove Line BreaksJoin lines into one paragraph✍️TextEmail ExtractorFind email addresses in text✍️TextCharacter Limit CheckerCheck text against a limit✍️TextHTML Tag StripperRemove HTML tags and keep the text✍️TextDuplicate Word FinderFind repeated words in text✍️TextCharacter CounterCount characters with and without spaces✍️TextSentence CounterCount sentences and average length✍️TextText Compare ToolFind different lines between two texts✍️TextUpside Down Text GeneratorFlip text upside down✍️TextRemove Punctuation ToolStrip punctuation from text✍️TextComma Separator ToolLines to comma list and back✍️TextLetter Frequency CounterHow often each letter appears✍️TextNATO Phonetic Alphabet ConverterSpell words with Alfa, Bravo, Charlie✍️TextPig Latin TranslatorTranslate English to Pig Latin✍️TextLeetspeak ConverterTurn text into 1337 speak✍️TextSyllable CounterEstimate syllables in English text
๐งฎ Calculators tools (34)
Everyday calculators for school, home projects, energy and science.
๐งฎCalculatorsPercentage CalculatorPercent of, percent change and more๐งฎCalculatorsDiscount CalculatorPrice after discount๐งฎCalculatorsVAT / Sales Tax CalculatorAdd or remove tax๐งฎCalculatorsTip CalculatorSplit the bill with tip๐งฎCalculatorsLoan CalculatorMonthly payment and total interest๐งฎCalculatorsCompound Interest CalculatorGrow savings over time๐งฎCalculatorsROI CalculatorReturn on investment๐งฎCalculatorsAverage CalculatorMean, median, min, max and sum๐งฎCalculatorsGCD and LCM CalculatorGreatest common divisor and least common multiple๐งฎCalculatorsProfit Margin CalculatorMargin and markup๐งฎCalculatorsSalary ConverterHourly, weekly, monthly, annual pay๐งฎCalculatorsBMI CalculatorBody mass index๐งฎCalculatorsBMR and Calorie CalculatorDaily calories estimate๐งฎCalculatorsOhms Law CalculatorCurrent and power from voltage and resistance๐งฎCalculatorsKinetic Energy CalculatorEnergy of a moving object๐งฎCalculatorsElectricity Cost CalculatorRunning cost of an appliance๐งฎCalculatorsTrip Fuel Cost CalculatorFuel needed and trip cost๐งฎCalculatorsGPA CalculatorGrade point average from grades and credits๐งฎCalculatorsWeighted Grade CalculatorFinal grade from scores and weights๐งฎCalculatorsPercentage Increase and Decrease CalculatorAdd or subtract a percentage๐งฎCalculatorsDog Age CalculatorDog years to human years๐งฎCalculatorsAverage Speed CalculatorSpeed from distance and time๐งฎCalculatorsAspect Ratio CalculatorRatio and resized dimensions๐งฎCalculatorsPPI CalculatorPixel density of a screen๐งฎCalculatorsDownload Time CalculatorHow long a download will take๐งฎCalculatorsFinal Grade CalculatorScore needed on your final exam๐งฎCalculatorsGrade Percentage CalculatorPercentage and letter grade๐งฎCalculatorsPaint CalculatorLiters of paint for a room๐งฎCalculatorsTile CalculatorHow many tiles you need๐งฎCalculatorsConcrete CalculatorConcrete volume for a slab๐งฎCalculatorsSolar Panel Output CalculatorDaily and yearly solar energy๐งฎCalculatorsBattery Life CalculatorRuntime from capacity and draw๐งฎCalculatorsSquare Footage CalculatorArea and cost per square foot๐งฎCalculatorsPercent Error CalculatorError between measured and true value
๐ฐ Finance tools (20)
Loans, investments, taxes and business calculators.
๐ฐFinanceSimple Interest CalculatorInterest and total amount๐ฐFinanceMortgage CalculatorMonthly payment and total interest๐ฐFinanceSavings Goal CalculatorMonthly savings needed to reach a goal๐ฐFinanceInflation CalculatorFuture cost and lost buying power๐ฐFinanceBreak-Even CalculatorUnits and revenue to break even๐ฐFinanceMarkup CalculatorSelling price from cost and markup๐ฐFinanceCommission CalculatorCommission on a sale๐ฐFinanceCAGR CalculatorCompound annual growth rate๐ฐFinanceRule of 72 CalculatorYears to double your money๐ฐFinanceCredit Card Payoff CalculatorMonths and interest to pay off a balance๐ฐFinanceFuture Value CalculatorInvestment growth with monthly contributions๐ฐFinanceOvertime Pay CalculatorRegular and overtime earnings๐ฐFinanceUnit Price CalculatorWhich product is the better deal?๐ฐFinanceCar Loan CalculatorMonthly payment for a vehicle loan๐ฐFinanceEMI CalculatorEquated monthly installment๐ฐFinanceSIP CalculatorFuture value of monthly investments๐ฐFinanceGST CalculatorAdd or remove GST๐ฐFinanceDepreciation CalculatorStraight-line and declining balance๐ฐFinanceNet Worth CalculatorAssets minus liabilities๐ฐFinanceDebt-to-Income Ratio CalculatorDTI ratio for loans
➗ Math tools (23)
Algebra, statistics, sequences and number tools.
➗MathQuadratic Equation SolverSolve ax2 + bx + c = 0➗MathFactorial Calculatorn! for any n up to 170➗MathPrime Number CheckerCheck a number and find the next prime➗MathPrime Factorization CalculatorBreak a number into prime factors➗MathFibonacci CalculatorThe nth Fibonacci number and sequence➗MathSquare Root CalculatorSquare root, cube root and square➗MathExponent CalculatorRaise a number to any power➗MathLogarithm CalculatorAny base, natural log and log10➗MathPermutation and Combination CalculatornPr and nCr➗MathStandard Deviation CalculatorMean, variance and standard deviation➗MathFraction SimplifierReduce a fraction to lowest terms➗MathScientific Notation ConverterStandard form to scientific notation➗MathFraction to Decimal CalculatorDecimal, percent and mixed number➗MathRatio CalculatorSimplify and scale a ratio➗MathMean, Median, Mode and Range CalculatorDescriptive statistics for a list➗MathZ-Score CalculatorStandard score and percentile➗MathDecimal to Fraction ConverterTurn decimals into fractions➗MathBinary CalculatorAdd, subtract, multiply and divide binary numbers➗MathModulo CalculatorRemainder and quotient➗MathArithmetic Sequence Calculatornth term and sum➗MathGeometric Sequence Calculatornth term and sum➗MathSlope Intercept Form CalculatorLine equation from two points➗MathSignificant Figures CalculatorRound to significant figures
๐ Geometry tools (16)
Area, volume and shape calculators.
๐GeometryCircle CalculatorArea, circumference and diameter from the radius๐GeometryRectangle CalculatorArea, perimeter and diagonal๐GeometryTriangle Area CalculatorArea from base and height๐GeometryPythagorean Theorem CalculatorFind the hypotenuse of a right triangle๐GeometrySphere CalculatorVolume and surface area๐GeometryCylinder CalculatorVolume and surface area๐GeometryCone CalculatorVolume, slant height and surface area๐GeometryCube CalculatorVolume, surface area and diagonal๐GeometryTriangle Area from 3 SidesHeron formula๐GeometryDistance Between Two PointsDistance, midpoint and slope๐GeometryTrapezoid Area CalculatorArea from two bases and height๐GeometryRegular Polygon CalculatorArea, perimeter and angles๐GeometryEllipse Area CalculatorArea and approximate perimeter๐GeometryCircle Sector CalculatorArc length, sector area and chord๐GeometryRectangular Prism CalculatorVolume, surface area and diagonal๐GeometryPyramid Volume CalculatorVolume and surface of a rectangular pyramid
❤️ Health tools (18)
Fitness and wellness estimates, for information only.
❤️HealthIdeal Weight CalculatorDevine formula estimate❤️HealthBody Fat CalculatorUS Navy method estimate❤️HealthWater Intake CalculatorDaily water suggestion❤️HealthProtein Intake CalculatorDaily protein by goal❤️HealthHeart Rate Zones CalculatorTraining zones from your age❤️HealthCalories Burned CalculatorEstimate calories for common activities❤️HealthRunning Pace CalculatorPace and speed from distance and time❤️HealthPregnancy Due Date CalculatorEstimated due date from last period❤️HealthWeight Loss CalculatorTime to reach your goal weight❤️HealthMacro CalculatorGrams of protein, fat and carbs❤️HealthSleep CalculatorBest bedtimes for your wake-up time❤️HealthOne Rep Max CalculatorEstimate your max lift❤️HealthTDEE CalculatorTotal daily energy expenditure❤️HealthCalorie CalculatorDaily calories for your goal❤️HealthWaist-to-Hip Ratio CalculatorWHR and WHO risk range❤️HealthLean Body Mass CalculatorBoer formula estimate❤️HealthBody Surface Area CalculatorMosteller formula❤️HealthSteps to Kilometers CalculatorDistance walked from step count
๐ Date & Time tools (20)
Dates, time zones, working hours and countdowns.
๐
Date & TimeAge CalculatorExact age in years, months and days๐
Date & TimeDays Between DatesCount days between two dates๐
Date & TimeAdd or Subtract DaysFind a date N days away๐
Date & TimeDay of the WeekWhich day was or will be a date๐
Date & TimeUnix Timestamp ConverterTimestamp to date and back๐
Date & TimeWeek Number CalculatorISO week number of any date๐
Date & TimeBusiness Days CalculatorWorking days between two dates๐
Date & TimeDays Until CalculatorCountdown to a date๐
Date & TimeLeap Year CheckerIs a year a leap year?๐
Date & TimeSeconds to Time ConverterSeconds to hh:mm:ss๐
Date & TimeZodiac Sign CalculatorFind your zodiac sign๐
Date & TimeDay of the Year CalculatorWhich day of the year is a date๐
Date & TimeGregorian to Hijri ConverterConvert a date to the Islamic calendar๐
Date & TimeTime Zone ConverterConvert a date and time between world time zones๐
Date & TimeAdd or Subtract Time CalculatorAdd or subtract hours and minutes๐
Date & TimeHours CalculatorHours worked between two times๐
Date & TimeMilitary Time Converter12-hour and 24-hour time๐
Date & TimeMonths Between Dates CalculatorMonths and days between two dates๐
Date & TimeBirthday Countdown CalculatorDays until your next birthday๐
Date & TimeAdd Months to a Date CalculatorDate after adding or subtracting months
๐ Converters tools (29)
Convert units, numbers, time and data sizes.
๐ConvertersLength ConverterMeters, miles, feet, inches and more๐ConvertersWeight ConverterKilograms, pounds, ounces and more๐ConvertersTemperature ConverterCelsius, Fahrenheit, Kelvin๐ConvertersSpeed Converterkm/h, mph, m/s, knots๐ConvertersArea ConverterSquare meters, acres, hectares๐ConvertersVolume ConverterLiters, gallons, cups๐ConvertersData Size ConverterBytes, KB, MB, GB, TB๐ConvertersNumber Base ConverterBinary, octal, decimal, hex๐ConvertersRoman Numeral ConverterNumbers to Roman numerals and back๐ConvertersFuel Economy ConverterMPG and L/100km๐ConvertersTime ConverterSeconds, minutes, hours, days, weeks, years๐ConvertersPressure ConverterPascal, bar, PSI, atmosphere, mmHg๐ConvertersEnergy ConverterJoules, calories, kWh, BTU๐ConvertersPower ConverterWatts, kilowatts, horsepower๐ConvertersAngle ConverterDegrees, radians, gradians๐ConvertersForce ConverterNewtons, pound-force, dynes๐ConvertersCooking Measurement ConverterCups, tablespoons, teaspoons and milliliters๐ConvertersNumber to Words ConverterWrite any number in English words๐ConvertersCM to Feet and Inches ConverterHeight conversion both ways๐ConvertersKilograms to Pounds ConverterConvert kg to lb and back๐ConvertersCentimeters to Inches ConverterConvert cm to inches and back๐ConvertersKilometers to Miles ConverterConvert km to miles and back๐ConvertersCelsius to Fahrenheit ConverterConvert C to F and back๐ConvertersLiters to Gallons ConverterConvert liters to US gallons and back๐ConvertersMeters to Feet ConverterConvert meters to feet and back๐ConvertersGrams to Ounces ConverterConvert grams to ounces and back๐ConvertersDecimal to Binary ConverterConvert between decimal and binary๐ConvertersMbps to MB/s ConverterMegabits per second to megabytes per second๐ConvertersHours to Decimal ConverterHH:MM to decimal hours and back
๐ป Developer tools (29)
Hashes, colors, formatters and code helpers.
๐ปDeveloperJSON FormatterBeautify, minify and validate JSON๐ปDeveloperBase64 Encoder / DecoderEncode and decode Base64๐ปDeveloperURL Encoder / DecoderPercent-encode URLs๐ปDeveloperHTML Entities EncoderEscape and unescape HTML๐ปDeveloperColor ConverterHEX, RGB and HSL๐ปDeveloperUUID GeneratorRandom v4 UUIDs๐ปDeveloperSHA-256 Hash GeneratorHash any text๐ปDeveloperCSS Gradient GeneratorLinear gradient code๐ปDeveloperCSS Box Shadow GeneratorBox shadow code๐ปDeveloperPX to REM ConverterPixels to rem and em๐ปDeveloperRegex TesterTest a regular expression๐ปDeveloperText to Hex ConverterText to hexadecimal and back๐ปDeveloperJWT DecoderRead the header and payload of a JWT๐ปDeveloperCSS MinifierCompress CSS code๐ปDeveloperCSV to JSON ConverterTurn CSV rows into JSON๐ปDeveloperHTML MinifierRemove comments and extra whitespace๐ปDeveloperBitwise CalculatorAND, OR, XOR and shifts๐ปDeveloperJSON to CSV ConverterTurn a JSON array into CSV๐ปDeveloperMarkdown to HTML ConverterBasic Markdown to clean HTML๐ปDeveloperPassword Strength CheckerEstimate how strong a password is๐ปDeveloperColor Contrast CheckerWCAG contrast ratio for text and background๐ปDeveloperText to ASCII Code ConverterCharacter codes in decimal, hex and binary๐ปDeveloperMD5 Hash GeneratorMD5 checksum of any text๐ปDeveloperRGB to HEX ConverterConvert RGB values to a HEX color๐ปDeveloperColor Palette GeneratorHarmonious colors from one base color๐ปDeveloperHTTP Status Code LookupMeaning of HTTP response codes๐ปDeveloperJSON String Escape ConverterEscape or unescape text for JSON๐ปDeveloperXML FormatterPretty print XML๐ปDeveloperURL ExtractorFind links in any text
๐ SEO tools (18)
Meta tags, schema, redirects and search preview tools.
๐SEOMeta Tag GeneratorTitle, description and viewport tags๐SEOOpen Graph Tag GeneratorSocial sharing tags for Facebook and X๐SEORobots.txt GeneratorCreate a robots.txt file๐SEOKeyword Density CheckerMost used words in your text๐SEOSEO Title Length CheckerCheck if your title fits Google results๐SEOMeta Description Length CheckerCheck your description length๐SEOUTM Link BuilderCampaign tracking links๐SEOURL ParserSplit a URL into its parts๐SEOHashtag GeneratorTurn keywords into hashtags๐SEOWhatsApp Link GeneratorClick-to-chat link with a message๐SEOXML Sitemap GeneratorBuild a sitemap from a URL list๐SEOReadability Score CheckerFlesch reading ease๐SEOGoogle SERP Preview ToolSee how your title and description may look๐SEOFAQ Schema GeneratorCreate FAQPage JSON-LD๐SEOCanonical Tag GeneratorClean canonical link tag from a URL๐SEO301 Redirect GeneratorApache and Nginx redirect rules๐SEOads.txt GeneratorCreate the ads.txt line for AdSense๐SEOTwitter Card GeneratorTwitter / X card meta tags
๐ฒ Generators tools (13)
Passwords, random numbers, PINs and fun generators.
๐ฒGeneratorsPassword GeneratorStrong random passwords๐ฒGeneratorsRandom Number GeneratorNumbers in any range๐ฒGeneratorsRandom Name PickerPick a winner from a list๐ฒGeneratorsRandom Color GeneratorRandom HEX colors๐ฒGeneratorsDice RollerRoll one or many dice๐ฒGeneratorsCoin Flip SimulatorFlip a coin once or many times๐ฒGeneratorsLottery Number GeneratorRandom lottery picks๐ฒGeneratorsRandom Team GeneratorSplit names into teams๐ฒGeneratorsRandom String GeneratorRandom strings and tokens๐ฒGeneratorsPassphrase GeneratorMemorable secure passphrases๐ฒGeneratorsSecret Santa GeneratorRandom gift exchange pairs๐ฒGeneratorsRandom Date GeneratorRandom dates in any range๐ฒGeneratorsRandom PIN GeneratorSecure numeric PIN codes
Why people use this toolbox
⚡Instant results
Answers appear as you type. No waiting, no page reloads.
๐Private by design
Everything is calculated in your browser. Nothing you enter is uploaded or stored.
๐Free forever
No account, no limits and no hidden fees for any tool.
๐ฑWorks everywhere
Optimized for phones, tablets and desktops, in light or dark mode.
Frequently asked questions
Are these tools really free?
Yes. Every tool is free to use with no sign-up and no usage limits.
Is my data stored or uploaded?
No. Calculations run inside your browser, so the text and numbers you enter never leave your device.
Do the tools work on mobile?
Yes. The whole site is designed for phones first and also works on tablets and computers.
How accurate are the results?
We use standard formulas and test every tool. Health, finance and religious calculators are estimates for information only, so please read our Disclaimer.
Can I suggest a new tool?
Absolutely. Send your idea by email to dalycrn@gmail.com or message us on WhatsApp from the Contact page.
Who is behind this website?
The toolbox is a project of Carino Network, owned and led by Daly Carino, a journalist, producer, director and developer. The Carino Production brand has been online since 2015.
A Carino Network project
Built and maintained by Daly Carino, journalist, producer, director and developer, and CEO of Carino Network, with a simple goal: fast, honest tools that save you time. Read more about us or visit Carinonews.com.