The whole set of 127 ASCII characters. Table shows decimal (DEC), hexadecimal (HEX), octal (OCT) and binary (BIN) indexes, but also HTML entities (in 3 different formats), ANSI-C entities and ASCII descriptors.
Table shows acoustic impedance of various mediums such as air, water or marble.
Table shows example usage of selected radioisotopes.
Table shows average and minimum monthly salary and hour rate (gross), that the employer must guarantee to the employee in Poland. Both current and historical rates are presented.
Table shows average wages (earnings) in different countries. Both annual and monthly incomes are presented
- Basic physical and chemical constants
Table shows common constants used in physics and chemistry.
Binary prefixes - kibi, mebi, gibi, tebi etc.
Tables show boiling points of various chemical substances. You see name and chemical formula next to temperature converted to the unit of your choice (Celsius deegres, kelvins, Fehrenheits degrees etc.)
Table shows energy of common chemical bonds in selected unit (kJ/mol, atomic units, eV etc.).
Tables show length of chemical bonds in selected molecules.
Table shows how to write ASCII characters in Braille. In addition to standard international characters, polish diactritic character are presented.
Table shows rates of polish corporate income tax (CIT). Both current and historical data are presented.
Table shows signs and zodiac elementals used in Chinese zodiac.
- Cooling mixtures
Table shows composition (including mass ratio) of common cooling mixtures i.e. mixtures used to achieve low temperatures.
Table shows list of ISO 3166-1 and ISO 3166-2 codes assigned to different countries.
Tables show values of critical pressures specified for various chemical substances.
Table shows critical temperatures of various chemical substances.
Table shows cryoscopic and ebullioscopic constant of selected substances.
Table shows lattice crystal energy in kJ/mol for selected ion compounds.
Table shows list of ISO 4217 codes assigned to different currencies such as EUR for Euro, USD for american dollar etc.
Table shows density of selected gases, solids and liquids.
Table shows derivatives of selected elementary functions of one variable f(x) such as linear function, square function, sine, cosine, logarithm etc.
- Dipole moment of substances
Table shows values of electric dipole moment of various chemical substances given in any unit you prefer such as debyes, coulomb times meter, atomic units of dipole moment etc.
Table shows dissociation constants of selected chemical substances in temperature 298K (25°C).
Table shows economic growth rates (GDP growth) in Poland. Both annual and quarterly rates are presented.
Table shows effective tax (work cost) in different countries.
Table shows overpotential values on selected electrodes.
- Electromagnetic waves
Table shows common classification of electromagnetic waves based on frequency (wavelength). Also, example methods of producing/generating and applications for given wavelengths are presented.
- Electron affinity
Table shows electron affinity (i.e. the amount of energy released when an electron is added to atom) for most of chemical elements.
Table shows electron configuration of chemical elements in groundstate.
Table shows basic properties of elementary particles.
- Employment in enterprise sector in Poland
Table shows monthly number of employees in enterprise sector in Poland delivered by Central Statistical Office (polish: GUS). Values are given in thousands of people. Current and historical data are presented.
Tables show (latent) heat of vaporization of various chemical substances under normal conditions (1013,25 hPa, 25 °C).
- Equation types
Short summary of common equation types (algebraic, linear, differential etc.).
- Exponentiation: formulas
Tables show common formulas and properties related to exponentiation (power function).
Table shows flame colors specific to given chemical elements such as yellow-orange for sodium (Na), red-cherry for lithium (Li) etc.
Table shows list of fourCC identifiers for common video codecs.
Table summarizes GS1 country codes also known as barcode prefixes.
Table shows basic physical properties of our Galaxy i.e. Milky Way. Presented data are for example diameter, mass, mean density etc. but also less common like distance of the Sun from the center of the Galaxy.
- Galvanic series
Table shows electrochemical potential of selected elements i.e. so-called galvanic series.
Table shows small and big greek letters with their example usage in various kind of science such as mathematics, physics or chemistry. Additionally, it shows how to get a given greek letter in the HTML code (so-called HTML entities), TeX and TeX based formats such as LaTeX, KaTeX, MathJax etc. or in the UNICODE system.
Lookup table (4096 entries) for fast manual conversion of decimal to hex, or hex to decimal numbers.
Table summarizes formats of IBAN (International Bank Account Number) numbers used in different countries.
The whole set of ISO 8859-2 (Latin-2) characters. Table shows decimal (DEC), hexadecimal (HEX), octal (OCT) and binary (BIN) indexes, but also HTML entities (in 3 different formats), ANSI-C entities, unicode (HEX, OCT and DEC) and textual descriptors.
Table shows annual inflation rates in Poland since 1950.
- Inflation over the world (archive)
Table shows annual inflation rates in various countries.
- Integrals - formulas
Table shows indefinite integrals (antiderivative) of selected functions.
Table shows ionization energy of chemical elements given in kJ/mol.
Table shows common properties and formulas related to logarithms (logarithm function).
MTU (Maximum Transmission Unit) values assigned to given network type.
Table shows resistivity values of common materials (substances).
Table constrains over 200 mathematical constants with common informations such as approximated value, date of discovery or last known precision (number of significant digits). This includes basic constants (e.g. pi number), but also less common constants such as Khinchin's constant are presented.
Tables contain english to polish translation of common math related phrases. Dictionary entries are grouped into functional groups such as geometry, sequences or - even more specialized - related to isosceles triangle etc.
Table shows how sign of arguments (positive, negative) affect the final result for various math operations such as addition, subtraction, multiplication etc.
Table show common formulas related to exponential function.
- Math table: homographic function
Table shows common formulas related to homographic function such as discriminant of the function (ad-bc) or asymptotes formulas (vertical and horizontal).
- Math table: linear function
Tables show common formulas related to linear function such as various form of presentation (slope-intercept, point-slope, constant-slope etc.) or root formula (zero of a function).
- Math table: quadratic function
Tables show common formulas related to quadratic function such as various form of representation (standard, factored, vertex etc.) or formula for discriminant of quadratic function often called simply delta
Tables show typical formulas related to analytic geometry such as distance between two points.
Tables show common formulas useful in combinatorics such as number of variations (with or without repetition) or binomial.
Table shows formulas for conversion between various coordinate systems for example from cartesian to cylindrical or vice versa. Formulas for both two and three-dimensional coordinate systems are presented.
- Math tables: geometry
Tables show typical formulas related to geometry such as surface area of various geometric plane shapes, disk circumference, sphere volume etc.
Table shows common formulas used during statistical data processing such as various types of means (averages), standard deviation or variance.
- Math tables: stereometry (3D)
Table shows common formulas related to shapes (solids) in three dimensions i.e. so-called stereometry.
Tables show melting points of various chemical substances. You see name and chemical formula next to temperature converted to the unit of your choice (Celsius deegres, kelvins, Fehrenheits degrees etc.)
Table shows minimum wages in different countries.
Tables show molar mass of various chemical compounds.
Tables display the volume that one mole of the selected gas occupies.
- Moon data sheet
Table shows common physical properties of the moon such as mean radius, distance from the Earth (average, minimum and maximum), mean density, volume etc.
- Moons of the planets
Table shows all known, natural satellites (i.e. moons) of the planets in Solar System including some common characteristics such as mean radius, semi-major axis, sidereal period or discovery year.
Table shows common Morse codes for letters, digits and selected special codes such as international SOS signal.
Multiplication table with changeable size
- Names of large numbers
Table contains names of large numbers such as million, milliard, billion etc., but also less common e.g. quintilliard. Calculator supports two naming systems (so-called scales): "short scale" (used in most English-speaking countries e.g. UK or USA) and "long scale" (used in most of continental Europe countries).
Table shows frequencies of music notes in twelve-tone equal tempered system (12-TET). Both basic tone and up to three harmonic frequencies are presented.
Table shows basic properties of mathematical operations such as commutativity of addition or distributive property of multiplication over addition.
A metric units prefixes for numbers (SI prefixes).
- Numerical sequences
Tables show common formulas helpful when you performing sequences related tasks such as sum of first n elements of arithmetic sequence or calculation arbitral element of geometric sequence.
- Order of operations
Table shows order of common math operations, which should be applied while performing arithmetic calculations such as addition, subtraction, multilication, division etc.
- PIT rates in Poland (archive)
Table shows rates of polish personal income tax (PIT). Both current and historical data are presented, including division into tax thresholds.
- PL: Tax-free threshold archive
Table shows tax-free and so-called tax-decreasing amounts in Poland. Both actual and archive values are presented.
Table shows common paper size standards such as A4, A5 etc.
Table shows properties of common periodic signals (sine, square, triangle etc.) such as absolute mean value, effective value or shape factor.
Tables show relative permittivity (to vacuum) of various substances (solvents).
Table shows list of 32-bit identifiers assigned to hardware vendors used in Plug & Play devices
Deposit rates of National Bank of Poland are adjusted each month by Monetary Policy Council (polish: RPP). Both actual and historical data are presented.
Discount bills rates of National Bank of Poland are adjusted each month by Monetary Policy Council (polish: RPP). Both actual and historical data are presented.
Lombard rates of National Bank of Poland are adjusted each month by Monetary Policy Council (polish: RPP). Both actual and historical data are presented.
Rediscount bills rates of National Bank of Poland are adjusted each month by Monetary Policy Council (polish: RPP). Both actual and historical data are presented.
Reference rates of National Bank of Poland are adjusted each month by Monetary Policy Council (polish: RPP). Both actual and historical data are presented.
All basic interest rates of the National Bank of Poland presented in one table. Both actual and historical data are presented.
Table shows rates of polish "interest by law". Both current and historical data are presented, including latest division into interest for delay, capital and interest for delay in commercial (new act from 2016 year).
Table shows rates of polish "tax interest". Included both current and historical data.
Polish ZUS rates with minimal tax base. Included both current and archived (starting from 2007) rates.
Table shows the rate of obligatory accident insurance contribution assigned to different type of work activity in Poland (grouped by so-called PKD codes and risk groups). Both actual and historical rates are presented.
- Polish health contribution (lump-sum tax)
Table shows the amount of monthly health contribution (polish: NFZ) depending on your annual sales if you use lump-sum tax rates in Poland.
- Polish lump-sum tax rates
Table shows current lump-sum tax rates used in Poland depending on type of activity (PKWiU codes).
Table shows monthly number of registered unemployed in Poland given in thousands of persons. Data are delivered by Central Statistical Office (polish: GUS). Current and historical data are presented.
Table shows annual limits for polish individual retirement pension (IKE) and individual retirement protection (IKZE) accounts, which are both an elements of the voluntary 3rd pillar retirement pension system in Poland. Included both actual and historical data.
- Polish travel allowance (foreign) table
Table shows daily allowance rates for foreign travels in Polish business or employment.
- Polish travel allowance (national) table
Table shows daily allowance rates for national travels in Polish business or employment. Included both actual and historical data.
Table shows retail treasury bonds available in Poland.
Table shows unemployment rate in Poland published by Central Statistical Office (polish: GUS). Current and historical data since 1990 are presented.
Common TeX (and TeX based systems such as LaTeX, KaTeX, MathJax etc.) commands grouped in one place. Quick TeX cheatsheet/crib helpful while writing any scientific text containing math formulas like mathematical or physical publications.
- Real work cost in Poland (archive)
Table shows effective work cost in Poland including all taxes and insurance contribution, which decreases final net sallary ("on-hand"). Both actual and historical data for various employment forms (employment contract, B2B) are presented.
Table shows basic Roman numbers (I, II, III, V, X, M, C etc.) and corresponding Arabic numbers.
Table shows when summer and winter holidays are in different places in the world. Both actual (ongoing) and historical data are included.
Comparison of different shoe size systems - European (EU), United Kingdom (UK, British), foot size in centimeters (CM) and few more.
- Short multiplication formulas
Tables shows various short multiplication formulas. Both common formulas such as (a + b)² (square of a sum) and general cases (e.g. any power of a sum) are presented.
- Solar System planets
Table shows most common properties of Solar System planets collected into one set of data.
Table shows solubility equilibriums of selected substances, mainly sparingly soluble salts and hydroxides.
Table shows solubility of various substances under different temperature given in grams of dissoluted substance per 100g of water.
Table shows solutions color characteristic to given ions (cations or anions) such as Cu2+ (blue) or MNO4- (purple).
Tables show density of chosen water solutions depending on concentration of dissolved substance at 20 °C.
- Sound absorption coefficients
Table shows sound absorption coefficient for different building materials.
Table shows spectral contour used to measure sound insulation in various standards such as STC or Rw.
Table shows examples of sound sources with various intensity level given in decibels.
- Sound reduction index (SRI)
Table shows sound reduction indexes (SRI) for common materials.
- Sound transmission class (STC)
Table shows sound transmission classs (STC) for common building materials.
Table shows speed of sound within medium compound of various materials such as air, steel or water.
Table shows specific heat capacity of selected gases, solids and liquids.
Table shows isotopic composition of chemical elements occurring permanently in nature. Isotopes obtained artificially are not presented here.
Tables show values of standard (1013.25 hPa, 298K) enthalpy of creation (from free elements) of various chemical compounds.
Tables show values of standard entropy (1013.25hPa, 298K) of various chemical substances.
Tables show values of standard (1013.25 hPa, 298K) free enthalpy of creation (from free elements) of various chemical compounds.
Table shows standard potentials of common half-cells at 25 °C.
- Taxes over the world: PIT, CIT, VAT
Table compares rates of personal (PIT) and corporate (CIT) income and value added (VAT) tax rates in different countries.
Table shows common list of top-level internet domains such as .com, .net or related to given region such as .pl or .de.
Table shows values of trigonometric functions of selected angles. Included functions are: sine, cosine, tangens and cotangens. Both deegres and radians angles are presented.
- Trigonometric reduction formulas
Table shows so-called rediction formulas, which allow to calculate values of trigonometric functions of obtuse angle (more than 90 degrees) without calculator easily.
- Trigonometry identities
Tables show common trigonometric identities and formulas such as Pythagorean trigonometric identity, sine of half angle formula, etc.
Tables show triple points (temperature and pressure) of selected substances i.e. conditions when all three phases (liquid, solid and gas) coexist in thermodynamic equilibrium.
Table summarizes how to read load index codes printed on tyres and more.
Table summarizes how to read speed ratings codes printed on tyres and more.
Table shows various units (gal, erg, dyne etc.) and corresponding physical quantities (measurements) used in historical CGS (centimetre-gram-second) system. Both basic CGS and EMU/ESU extensions are presented.
Table shows various units (kilogram, metre, ampere etc.) and corresponding physical quantities (measurements). Both basic SI and selected derivated units are presented.
Table shows how density of water depends on temperature. Data were measured under so-called normal pressure i.e. 1013,25 hPa.
Table shows list of well-known TCP and UDP ports with assigned applications. Both official standarized by IANA and unofficial, but popular ports are presented.
Table shows Young's modulus of various materials such as foam, concrete, rubber etc.
Table shows various methods of calculation or definitions of the so-caller e number.