Anglo-Saxon Weights & Measures
Catalogue of traditional British units with historical notes.
British Weights and Measures Association (BWMA)
Pressure group opposing compulsory metrication. Political, consumer and transport information, discussion boards and links.
Chinese Numbers
Put in a number and get the Chinese representation of that number. Also, converts from Arabic numeral back to the Chinese form.
Cleave Books - Specialist Calculators
Features converters for perimeter measurements of geometric figures, fractions, percentages, number bases, loan repayments, growth and decay, cost of living index, fuel consumption…
Conversion Factors for Energy Equivalents
Physics laboratory of the National Institute of Standards and Technology (NIST) sponsors and maintains this reference resource of CODATA-recommended values of fundamental physical …
Convert It
Features converter tools for measurement, currency exchange, world time zones, time, finance, driving distance, Roman numerals, atmosphere, and body mass index. Also, has a basi…
Convert-Me
Metric, English old Russian, ancient Greek and Roman, nautical, typographical and astronomical conversions.
Convert-me.Com
Interactive calculators for many common and exotic measurement systems, including metric, Ancient Greek, Roman, and old Russian.
eFunda: Units and Constants
The index page for units, fundamental constants, and currencies.
English Weights and Measures
History and usage of English/Imperial/customary weights and measures, with conversion factors, and pictures. Minims, drachms, pecks, bushels, rods, poles, perches, furlongs, ounces…
IEER Technical Classroom
Table of conversion factors for selected units relevant to nuclear topics.
International System of Units
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 …
Math Connect
Provides calculations of various types including metric conversion, engineering calculations, and computing finance loan payments. Also, has list of general math formulas.
Measurement Unit Converter
Converts many units of measurement using a JavaScript 1.1 applet.
Metric 4 US
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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