Calculators
78 Narzędzia
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Narzędzia znacznika czasu 6
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Current Unix czasuLive clock showing Unix time in seconds and milliseconds.Konwerter znacznika czasu to datyTurn a timestamp (s/ms/µs) into a formatted date instantly.Konwerter daty to znacznika czasuConvert a calendar date & time into Unix epoch seconds.Konwerter MillisecondsConvert milliseconds to seconds, minutes, hours and days.Kalkulator czasu DifferenceDistance between two timestamps or dates in every unit.
Narzędzia daty i godziny 7
Konwerter daty FormatRender any date in ISO, RFC, locale and custom formats.Days Between datCount days (and weeks/months) between two calendar dates.Kalkulator daty Add SubtractAdd or subtract days, weeks, months from a date.Konwerter podsieciCompare times across world timezones instantly.Weryfikator tygodnia YearCheck whether a year is a leap year and why.Kalkulator roku przestępnegoExact age in years, months, days, hours and total days.
Narzędzia liczbowe 11
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Konwerter dziesiętnego procentu szesnastkowego LiveEdit hex, dec, oct and bin simultaneously — all stay in sync.Konwerter Roman NumeralConvert between Roman numerals and Arabic numbers.Konwerter liczby to WordsSpell out numbers in English words (cheques, captions).Kalkulator losowychPercent of, increase/decrease and ratio problems.Generator wieku liczbyCryptographically random integers in any range.Formatowanie liczbyThousands separators and fixed decimals for any locale.Kalkulator silniExact big-integer factorials.Kalkulator GCD & LCMGreatest common divisor and least common multiple of a list.Weryfikator liczb pierwszych liczbyTest primality and show the smallest factor.dwójkowego tekstu FormatAdds Unicode combining characters to change formatting of plaintext.
Narzędzia UUID 6
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Generator UUID v7Time-ordered sortable UUIDs for databases.Generator ULID26-character lexicographically sortable unique IDs.Generator GUIDMicrosoft-style bracketed GUIDs.Walidator UUIDValidate a UUID/GUID and detect its version & variant.Generate all checksumsGenerates all available checksums for the input.
Konwertery jednostek 22
Konwerter długościConvert metres, kilometres, centimetres, inches, feet, yards, miles and nautical miles.Konwerter wagiConvert kilograms, grams, tonnes, pounds, ounces, stones and carats.Konwerter temperaturyConvert Celsius, Fahrenheit, Kelvin and Rankine with the formulas shown.Konwerter objętościConvert litres, millilitres, US and imperial gallons, cups, pints, quarts and fluid ounces.Konwerter prędkościConvert km/h, mph, metres per second, knots, feet per second and Mach number.Konwerter powierzchniConvert square metres, hectares, acres, square feet, square inches and square miles.
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Konwerter ciśnieniaConvert pascbar, psi, atm, torr, mmHg, kgf/cm² and inches of mercury.Konwerter energiiConvert joules, kilowatt-hours, calories, kilocalories, BTU, electronvolts and tonnes of oil equivalent.Konwerter mocyConvert watts, kilowatts, mechanical and metric horsepower, BTU/h and kcal/h.Konwerter kątaConvert degrees, radians, gradians, arcminutes, arcseconds and turns.Konwerter czasu czasu trwaniaConvert nanoseconds to centuries: seconds, minutes, hours, days, weeks, months and years.Konwerter danych pamięciConvert bits, bytes and SI versus IEC multiples — kB, MB, GB, KiB, MiB, GiB, TiB.Konwerter Typography UnitConvert CSS px, pt, pc, mm, cm, in, Q and didot/cicero at the standard 96 dpi reference.Konwerter końca liniiConvert hertz, kilohertz, megahertz, gigahertz, RPM and radians per second.Konwerter danych RateConvert bandwidth between bit/s, kbit/s, Mbit/s, Gbit/s and byte-per-second units including IEC multiples.Konwerter ForceConvert newtons, kilonewtons, dynes, kilogram-force, pound-force, ounce-force, poundals and kips.Konwerter TorqueConvert newton-metres, kgf·m, kgf·cm, lbf·ft, lbf·in, ozf·in and dyne-centimetres.Konwerter DensityConvert kg/m³, g/cm³, g/mL, lb/ft³, lb/in³ and tonnes per cubic metre.Konwerter Radiation DoseConvert gray, rad, sievert and rem including milli and micro prefixes.Konwerter ViscosityConvert dynamic viscosity between Pa·s, mPa·s, centipoise, poise and lbf·s/ft².Konwerter LuminanceConvert cd/m², nits, lamberts, foot-lamberts, stilbs and cd/cm².Konwerter IlluminanceConvert lux, kilolux, phot, foot-candles and lumens per square foot.
Matematyka i statystyka 14
Kalkulator statystykiMean, median, mode, range, variance, standard deviation, standard error, quartiles and IQR from a list of numbers.Kalkulator percentylaCompute any percentile of a data set with linear interpolation, plus all deciles.Kalkulator korelacjiPearson and Spearman correlation, r², and the least-squares regression line for paired data.Kalkulator kombinacjiC(n,r) with exact BigInt arithmetic and a list of the actual combinations for small inputs.Kalkulator permutacjiP(n,r) ordered arrangements computed exactly with BigInt — no floating point rounding.Kalkulator liczb pierwszych FactorizationBreak any integer into prime factors and list every divisor with the divisor count.
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Weryfikator liczb pierwszych liczbyTest 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.Kalkulator Math odległościEvaluate arithmetic expressions with correct precedence, powers, factorials, functions and constants.Kalkulator ułamekSimplify fractions, convert decimals to exact fractions and add, subtract, multiply or divide them.procentu to ułamekConvert 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.Rotate 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.
Walidatory i sumy kontrolne 12
Walidator Card liczbyValidate a card or IMEI with the Luhn algorithm, detect the brand and derive the missing check digit.Walidator ISBNCheck ISBN-10 and ISBN-13 check digits and compute the correct one for a truncated ISBN.Walidator Barcode Check DigitValidate EAN-8, EAN-13, UPC-A and ITF-14 barcodes and see the weighted sum step by step.Walidator IBANValidate an IBAN with MOD-97, check the national length and show the rearranged calculation.Walidator SWIFT BICCheck an ISO 9362 BIC and split it into institution, country, location and branch codes.Weryfikator VINValidate a 17-character vehicle VIN check digit and decode region, year and plant positions.
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Walidator Mod-11 Check DigitValidate ISSN, ISMN, ORCID and other mod-11 identifiers, with the weighted sum shown.Walidator LEIValidate an ISO 17442 Legal Entity Identifier with the ISO 7064 MOD 97-10 scheme.Walidator Verhoeff CheckApply the Verhoeff dihedral-group checksum that catches all single-digit and all transposition errors.Walidator Damm CheckRun the Damm quasigroup checksum, which detects every single-digit error and adjacent transposition.Konwerter Latitude LongitudeConvert 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 th