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Conversion table of non-metric measures into SI and CGS.
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Converts common measurements from metric to imperial and vice versa, with other systems included for selected quantities such as light years, picas, and Old Russian measures.
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Catalogue of traditional British units with historical notes.
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Converts from American to metric units and vice versa.
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Group which lobbies and promotes English/imperial weights and measures, and opposes compulsory conversion to the metric system. Includes news, position papers about the history of metrication and its impact on consumers and merchants, discussion forum, and related links.
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Put in a number and get the Chinese representation of that number. Also, converts from Arabic numeral back to the Chinese form.
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Features converters for perimeter measurements of geometric figures, fractions, percentages, number bases, loan repayments, growth and decay, cost of living index, fuel consumption, flow rate, specific energy, viscocity, and heat capacity.
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Physics laboratory of the National Institute of Standards and Technology (NIST) sponsors and maintains this reference resource of CODATA-recommended values of fundamental physical restraints.
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More than 40 different unit conversion tables.
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Convert units of measurements, bases, and PPT, RTF, DOC, and XLS files to HTML.
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Features converter tools for measurement, currency exchange, world time zones, time, finance, driving distance, Roman numerals, atmosphere, and body mass index. Also, has a basic calculator and periodic table.
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Metric, English old Russian, ancient Greek and Roman, nautical, typographical and astronomical conversions.
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Online calculator provides conversions between a number of common (and not so common) units.
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History and usage of English/Imperial/customary weights and measures, with conversion factors, and pictures. Minims, drachms, pecks, bushels, rods, poles, perches, furlongs, ounces, fathoms, pints, gallons, nails, chains, chaldrons, tods, crowns, florins, groats, farthings and guineas.
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Convert Equatorial to Galactic Coordinates.
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Convert currencies and measurements.
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Conversion calculators for distance, length, area, volume weights, and temperature.
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A dictionary of units of measurement: explanations of the metric system, System Internationale (SI), English customary system, and other modern measuring systems. Plus extensive links to other measurement-related Internet resources.
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Table of conversion factors for selected units relevant to nuclear topics.
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Generates an equivalency table from any engineering unit to any other.
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Definitions of SI units and SI prefixes, units outside the SI, rules and style conventions, historical context for SI units, international aspects of the SI, and unit conversions.
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A tool for engineers and others to convert from almost any set of units to any other.
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Provides calculations of various types including metric conversion, engineering calculations, and computing finance loan payments. Also, has list of general math formulas.
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Convert volume (capacity), weight, length, area, temperature, pressure, torque, power and energy measures between U.S./Imperial and SI (Metric) units. Requires JavaScript.
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Converts many units of measurement using a JavaScript 1.1 applet.
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Measurements converter for time, length, volume, and weight. Requires JavaScript.
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Explains with many examples the question of "What do ppm, ppb, ppt and ppq stand for?"
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Resource for units, weights, measures, calculators and converters.
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A site promoting the metric system which argues why metric is better and English is worse. Provides an English-metric online calculator.
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Conversion factors and online calculators for metric and imperial units.
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Standard-to-metric conversion factor tables with definitions, derived units and prefixes.
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Online calculator converts between metric, British, and American units.
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Formulas for converting imperial system into metric system. Site in both English and French.
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Factsheets, regulations and conversion tools. Official site of the United States Metric Program.
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Official imperial-to-metric conversion tables.
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Length, area, mass and weight, volume and capacity, temperature, angles, force, torque, electricals, cloth sizes, and some others.
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Offers conversion tools for length, volume, temperature, astronomical, clothing sizes, computer bytes, cooking measurements, time zones, density, energy, finance, flow rates, force frequency, and some fun pages.
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Provide online javascript converters and calculators for converting metric to imperial units and vice-versa.
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Online unit conversion calculators for volume, distance, weight, and temperature units. Also includes number conversion (decimal, hex, and binary) and a tool to convert characters to or from ASCII codes.
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Provides translation of unit and prefix names for the international metric system (SI) into various languages. For some, transliterations are also given.
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Reference information on the International System of Units (SI).
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Simple Celsius-Fahrenheit conversions.
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A temperature converter for Celsius and Fahrenheit.
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Convert units from one measure to another (e.g. meters to yards, liters to gallons). A very extensive collection of units and categories. Includes usage and definitions descriptions of units and categories.
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Outline of the metric system with emphasis on applications in physics.
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Dictionary of metric units explaining the principles and history of the system.
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Illustrated examples of sizes in the metric system, from ters- to pico-.
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Pressure group campaigning for the completion of metrication in the UK. History, legislation, and practical help.
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Converts such things as inches to centimetres, gallon to cubic metres or even curie to becquerel
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Online conversions from physics units to other physics units. Includes a comprehensive set of units with definitions.
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Features conversion calculators for atmospheric pressure, volume, distance, weight, velocity, temperature, and force.
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Features converters for physical constants, SI units, temperature, currency, and temperature.
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Conversions and equivalences of the principal units of measure of the SI and Anglo-Saxon systems.
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Converts area, density, energy, force, length, mass, power, pressure, speed, temperature and volume, bits and bytes.
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Java metric conversion calculator for length, weight, pressure, and volume.
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The index page for units, fundamental constants, and currencies.
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Converts temperature, currency, length, and mass.
