Calculators
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Tijdstempel-tools 7
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Current Unix TijdLive clock showing Unix time in seconds and milliseconds.Tijdstempel to DatumconverterTurn a timestamp (s/ms/µs) into a formatted date instantly.Datum to TijdstempelconverterConvert a calendar date & time into Unix epoch seconds.MillisecondsconverterConvert milliseconds to seconds, minutes, hours and days.Tijd DifferencecalculatorDistance between two timestamps or dates in every unit.From UNIX TijdstempelConverts a UNIX timestamp to a datetime string. e.g. 978346800 becomes Mon 1 January 2001 11:00:00 UTC A UNIX timestamp is a 32-bit value representing the number of seconds since January 1, 1970 UTC (the UNIX epoch).
Datum- en tijdtools 9
Datum FormatconverterRender any date in ISO, RFC, locale and custom formats.Days Between DatumCount days (and weeks/months) between two calendar dates.Datum Add SubtractcalculatorAdd or subtract days, weeks, months from a date.TijdzoneconverterCompare times across world timezones instantly.Schrikkel YearcontroleCheck whether a year is a leap year and why.LeeftijdcalculatorExact age in years, months, days, hours and total days.
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ISO Week GetalcalculatorFind the ISO-8601 week and weekday of any date.Get TijdGenerates a timestamp showing the amount of time since the UNIX epoch (1970-01-01 00:00:00 UTC). Uses the W3C High Resolution Time API.Parse DateTimeParses a DateTime string in your specified format and displays it in whichever timezone you choose with the following information: Date Time Period (AM/PM) Timezone UTC offset Daylight Saving Time Leap year Days in this month Day of year We
Getaltools 13
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Hex Decimaal Binair LiveconverterEdit hex, dec, oct and bin simultaneously — all stay in sync.Roman NumeralconverterConvert between Roman numerals and Arabic numbers.Getal to WordsconverterSpell out numbers in English words (cheques, captions).PercentagecalculatorPercent of, increase/decrease and ratio problems.Willekeurig GetalgeneratorCryptographically random integers in any range.GetalformatterThousands separators and fixed decimals for any locale.FaculteitcalculatorExact big-integer factorials.GCD & LCM-CalculatorGreatest common divisor and least common multiple of a list.Priemgetal GetalcontroleTest primality and show the smallest factor.Convert data unitsConverts a unit of data to another format.Convert distanceConverts a unit of distance to another format.Unicode Tekst FormatAdds Unicode combining characters to change formatting of plaintext.
UUID-tools 7
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UUID v7-GeneratorTime-ordered sortable UUIDs for databases.ULID-Generator26-character lexicographically sortable unique IDs.GUID-GeneratorMicrosoft-style bracketed GUIDs.UUID-ValidatorValidate a UUID/GUID and detect its version & variant.Generate all checksumsGenerates all available checksums for the input.Generate UUIDGenerates an RFC 9562 (formerly RFC 4122) compliant Universally Unique Identifier (UUID),
Eenheidsconverters 25
LengteconverterConvert metres, kilometres, centimetres, inches, feet, yards, miles and nautical miles.GewichtconverterConvert kilograms, grams, tonnes, pounds, ounces, stones and carats.TemperatuurconverterConvert Celsius, Fahrenheit, Kelvin and Rankine with the formulas shown.VolumeconverterConvert litres, millilitres, US and imperial gallons, cups, pints, quarts and fluid ounces.SnelheidconverterConvert km/h, mph, metres per second, knots, feet per second and Mach number.OppervlakteconverterConvert square metres, hectares, acres, square feet, square inches and square miles.
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DrukconverterConvert pascbar, psi, atm, torr, mmHg, kgf/cm² and inches of mercury.EnergieconverterConvert joules, kilowatt-hours, calories, kilocalories, BTU, electronvolts and tonnes of oil equivalent.VermogenconverterConvert watts, kilowatts, mechanical and metric horsepower, BTU/h and kcal/h.HoekconverterConvert degrees, radians, gradians, arcminutes, arcseconds and turns.Tijd DuurconverterConvert nanoseconds to centuries: seconds, minutes, hours, days, weeks, months and years.Data OpslagconverterConvert bits, bytes and SI versus IEC multiples — kB, MB, GB, KiB, MiB, GiB, TiB.Typography UnitconverterConvert CSS px, pt, pc, mm, cm, in, Q and didot/cicero at the standard 96 dpi reference.FrequentieconverterConvert hertz, kilohertz, megahertz, gigahertz, RPM and radians per second.Data RateconverterConvert bandwidth between bit/s, kbit/s, Mbit/s, Gbit/s and byte-per-second units including IEC multiples.ForceconverterConvert newtons, kilonewtons, dynes, kilogram-force, pound-force, ounce-force, poundals and kips.TorqueconverterConvert newton-metres, kgf·m, kgf·cm, lbf·ft, lbf·in, ozf·in and dyne-centimetres.DensityconverterConvert kg/m³, g/cm³, g/mL, lb/ft³, lb/in³ and tonnes per cubic metre.Radiation DoseconverterConvert gray, rad, sievert and rem including milli and micro prefixes.ViscosityconverterConvert dynamic viscosity between Pa·s, mPa·s, centipoise, poise and lbf·s/ft².LuminanceconverterConvert cd/m², nits, lamberts, foot-lamberts, stilbs and cd/cm².IlluminanceconverterConvert lux, kilolux, phot, foot-candles and lumens per square foot.Convert areaConverts a unit of area to another format.Convert massConverts a unit of mass to another format.Convert speedConverts a unit of speed to another format.
Wiskunde & statistiek 18
StatistiekcalculatorMean, median, mode, range, variance, standard deviation, standard error, quartiles and IQR from a list of numbers.PercentielcalculatorCompute any percentile of a data set with linear interpolation, plus all deciles.CorrelatiecalculatorPearson and Spearman correlation, r², and the least-squares regression line for paired data.CombinatiecalculatorC(n,r) with exact BigInt arithmetic and a list of the actual combinations for small inputs.PermutatiecalculatorP(n,r) ordered arrangements computed exactly with BigInt — no floating point rounding.Priemgetal FactorizationcalculatorBreak any integer into prime factors and list every divisor with the divisor count.
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Priemgetal GetalcontroleTest whether a number is prime and, if not, show its smallest divisors and divisor count.Primes Up To NList every prime number up to a limit, with the count.Math ExpressiecalculatorEvaluate arithmetic expressions with correct precedence, powers, factorials, functions and constants.BreukcalculatorSimplify fractions, convert decimals to exact fractions and add, subtract, multiply or divide them.Decimaal to BreukConvert any decimal to its exact simplest fraction using continued-fraction search with a tolerance.Add and Subtract FractionsAdd, subtract, multiply or divide fractions with the common denominator and GCD reduction shown.Drop bytesCuts a slice of the specified number of bytes out of the data. Negative values are allowed.MeanComputes the mean (average) of a number list. If an item in the string is not a number it is excluded from the list. e.g. 0x0a 8 .5 .5 becomes 4.75Rotate leftRotates each byte to the left by the number of bits specified, optionally carrying the excess bits over to the next byte. Currently only supports 8-bit values.Rotate rightRotates each byte to the right by the number of bits specified, optionally carrying the excess bits over to the next byte. Currently only supports 8-bit values.SleepSleep causes the recipe to wait for a specified number of milliseconds before continuing execution.Standard DeviationComputes the standard deviation of a number list. If an item in the string is not a number it is excluded from the list. e.g. 0x0a 8 .5 becomes 4.089281382128433
Validatoren & controlesommen 15
Card GetalvalidatorValidate a card or IMEI with the Luhn algorithm, detect the brand and derive the missing check digit.ISBN-ValidatorCheck ISBN-10 and ISBN-13 check digits and compute the correct one for a truncated ISBN.Barcode Check DigitvalidatorValidate EAN-8, EAN-13, UPC-A and ITF-14 barcodes and see the weighted sum step by step.IBAN-ValidatorValidate an IBAN with MOD-97, check the national length and show the rearranged calculation.SWIFT BIC-ValidatorCheck an ISO 9362 BIC and split it into institution, country, location and branch codes.VIN-ControleValidate a 17-character vehicle VIN check digit and decode region, year and plant positions.
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Mod-11 Check DigitvalidatorValidate ISSN, ISMN, ORCID and other mod-11 identifiers, with the weighted sum shown.LEI-ValidatorValidate an ISO 17442 Legal Entity Identifier with the ISO 7064 MOD 97-10 scheme.Verhoeff CheckvalidatorApply the Verhoeff dihedral-group checksum that catches all single-digit and all transposition errors.Damm CheckvalidatorRun the Damm quasigroup checksum, which detects every single-digit error and adjacent transposition.Latitude LongitudeconverterConvert between decimal degrees and degrees-minutes-seconds, with hemisphere and UTM zone hints.Caret M-decodeDecodes caret or M-encoded strings, i.e. ^M turns into a newline, M-^] turns into 0x9d. Sources such as `cat -v`. Please be aware that when using `cat -v` ^_ (caret-underscore) will not be encoded, but represents a valid encoding (namely thFletcher-16 ControlesomThe Fletcher checksum is an algorithm for computing a position-dependent checksum devised by John Gould Fletcher at Lawrence Livermore Labs in the late 1970s. The objective of the Fletcher checksum was to provide error-detection properties Fletcher-32 ControlesomThe Fletcher checksum is an algorithm for computing a position-dependent checksum devised by John Gould Fletcher at Lawrence Livermore Labs in the late 1970s. The objective of the Fletcher checksum was to provide error-detection properties Fletcher-64 ControlesomThe Fletcher checksum is an algorithm for computing a position-dependent checksum devised by John Gould Fletcher at Lawrence Livermore Labs in the late 1970s. The objective of the Fletcher checksum was to provide error-detection properties