 Temperature converter   A temperature expresses hot and cold, as measured with a thermometer. In physics, hotness is a body's ability to impart energy as heat to another body that is colder. In a body in which there are processes of chemical reaction and flow of matter, temperature may vary over its parts, and over time, as measured by a suitably small and rapidly responding thermometer, and may depend also on the match of the processes to the characteristics of the thermometer. You can convert temperature using link: http://aztekium.pl/temperature 

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 Weight converter   In science and engineering, the weight of an object is related to the force acting on the object, either due to gravity or to a reaction force that holds it in place. You can convert weight using link: http://aztekium.pl/weight 

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 Length converter   Length is a measure of distance. In the International System of Quantities, length is a quantity with dimension distance. In most systems of measurement, the unit of length is a base unit, from which other units are derived. Length is commonly understood to mean the most extended dimension of an object. To calculate length online use website: http://aztekium.pl/length 

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 Area converter   Area is the quantity that expresses the extent of a two dimensional figure or shape or planar lamina, in the plane. Surface area is its analog on the two dimensional surface of a three dimensional object. Area can be understood as the amount of material with a given thickness that would be necessary to fashion a model of the shape, or the amount of paint necessary to cover the surface with a single coat. To calculate area online use website: http://aztekium.pl/area 

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 Volume converter   Volume is the quantity of threedimensional space enclosed by a closed surface, for example, the space that a substance (solid, liquid, gas, or plasma) or shape occupies or contains.[1] Volume is often quantified numerically using the SI derived unit, the cubic metre. To calculate volume online use website: http://aztekium.pl/volume 

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 Speed converter   In everyday use and in kinematics, the speed of an object is the magnitude of its velocity (the rate of change of its position); it is thus a scalar quantity. The average speed of an object in an interval of time is the distance travelled by the object divided by the duration of the interval. Speed has the dimensions of distance divided by time. The SI unit of speed is the metre per second, but the most common unit of speed in everyday usage is the kilometre per hour or, in the US and the UK, miles per hour. For air and marine travel the knot is commonly used. To calculate volume online use website: http://aztekium.pl/speed 
meters per minute (m/min) 
kilometers per second (km/s) 
kilometers per minute (km/min) 
kilometers per hour (km/h) 

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 Time converter   Time is the indefinite continued progress of existence and events that occur in an apparently irreversible succession from the past, through the present, to the future. Time is a component quantity of various measurements used to sequence events, to compare the duration of events or the intervals between them, and to quantify rates of change of quantities in material reality or in the conscious experience. You can convert time units here: http://aztekium.pl/time 

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 Pressure converter   Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure (also spelled gage pressure) is the pressure relative to the ambient pressure. Various units are used to express pressure. You can convert pressure units here: http://aztekium.pl/pressure 
Pounds per square inch (psi) 
technical atmospheres (at) 
physical atmospheres (atm) 
millimeters of mercury (mmHg) 

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 Electricity converter   Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. In early days, electricity was considered as being unrelated to magnetism. Later on, many experimental results and the development of Maxwell's equations indicated that both electricity and magnetism are from a single phenomenon: electromagnetism. Various common phenomena are related to electricity, including lightning, static electricity, electric heating, electric discharges and many others. You can convert electricity units here: http://aztekium.pl/electricity 

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 Percentages converter   In mathematics, a percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%", or the abbreviations "pct.", "pct"; sometimes the abbreviation "pc" is also used. A percentage is a dimensionless number (pure number). You can convert electricity units here: http://aztekium.pl/percentages 
Calculating percentages online 

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 Numeral systems converter   A numeral system (or system of numeration) is a writing system for expressing numbers; that is, a mathematical notation for representing numbers of a given set, using digits or other symbols in a consistent manner. 

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 Bit converter   The byte is a unit of digital information that most commonly consists of eight bits. Historically, the byte was the number of bits used to encode a single character of text in a computer[1][2] and for this reason it is the smallest addressable unit of memory in many computer architectures. You can convert bits and bytes here: http://aztekium.pl/bytes 

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 Currency converter   A currency (from Middle English: curraunt, "in circulation", from Latin: currens, entis), in the most specific sense is money in any form when in use or circulation as a medium of exchange, especially circulating banknotes and coins. A more general definition is that a currency is a system of money (monetary units) in common use, especially for people in a nation. You can convert currency here: http://aztekium.pl/currency 
Exchange Australian Dollar 
Exchange Hong Kong Dollar 
Exchange New Zealand Dollar 
Exchange Singapore Dollar 
Exchange Hungarian Forint 
Exchange Ukrainian hryvnia 
Exchange Lithuanian Litas 
Exchange Israeli sheriffs 
Exchange South African rand 
Exchange Malaysian ringgit 
Exchange Indonesian Rupiah 
Exchange South Korean Won 
Exchange ounce of platinum 
Exchange ounce of palladium 
Exchange kilogram of aluminium 
Exchange kilogram of zinc 
Exchange kilogram of copper 
Exchange kilogram of lead 
Exchange kilogram of Nickel 

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 Chemistry   Chemistry is the scientific discipline involved with elements and compounds composed of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a reaction with other substances. 
decigrams/deciLiter (dg/dL) 
centigrams/deciLiter (cg/dL) 
miligrams/deciLiter (mg/dL) 
micrograms/deciLiter (µg/dL) 
nanograms/deciLiter (ng/dL) 
decigrams/miliLiter (dg/mL) 
centigrams/miliLiter (cg/mL) 
miligrams/miliLiter (mg/mL) 
micrograms/miliLiter (µg/mL) 
nanograms/miliLiter (ng/mL) 
decigrams/microLiter (dg/µL) 
centigrams/microLiter (cg/µL) 
miligrams/microLiter (mg/µL) 
micrograms/microLiter (µg/µL) 
nanograms/microLiter (ng/µL) 

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 Medicine   Medicine is the science and practice of establishing the diagnosis, prognosis, treatment, and prevention of disease. Medicine encompasses a variety of health care practices evolved to maintain and restore health by the prevention and treatment of illness. 

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 Convert cents to dollars   Dollar (symbol: $) is the name of more than 20 currencies, including those of Australia, Canada, Hong Kong, Jamaica, Liberia, Namibia, New Zealand, Singapore, Taiwan, and the United States. The U.S. dollar is also the official currency of the Caribbean Netherlands, East Timor, Ecuador, El Salvador, the Federated States of Micronesia, the Marshall Islands, Palau, and Zimbabwe. One dollar is generally divided into 100 cents. You can convert dollars to cents here: http://aztekium.pl/dollars 

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 Revolutions   Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min, or with the notation min−1) is the number of turns in one minute. It is a unit of rotational speed or the frequency of rotation around a fixed axis. You can convert revolutions here: http://aztekium.pl/revolutinons 
revolutions per second (rps) 
revolutions per minute (rpm) 
revolutions per hour (rph) 

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 Solutions   In chemistry, a solution is a special type of homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent. The mixing process of a solution happens at a scale where the effects of chemical polarity are involved, resulting in interactions that are specific to solvation. The solution assumes the phase of the solvent when the solvent is the larger fraction of the mixture, as is commonly the case. The concentration of a solute in a solution is the mass of that solute expressed as a percentage of the mass of the whole solution. You can convert revolutions here: http://aztekium.pl/solutions 

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 Calculations  

Online mathematical calculations 
Learning a math online  for free 
Calculating percentages online 

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 Others   The International System of Units (SI, abbreviated from the French Système international (d'unités)) is the modern form of the metric system and is the most widely used system of measurement. It comprises a coherent system of units of measurement built on seven base units, which are the second, metre, kilogram, ampere, kelvin, mole, candela, and a set of twenty prefixes to the unit names and unit symbols that may be used when specifying multiples and fractions of the units. The system also specifies names for 22 derived units, such as lumen and watt, for other common physical quantities. 

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