Online calculators and other resources for converting metric units to U.S. units, converting ancient measuring units to modern units, and converting within a measurement system (such as from liters to cubic meters).
A site promoting the metric system which argues why metric is better and English is worse. Provides an English-metric online calculator. www.metric4us.com
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. www.unc.edu/~rowlett/units/index.html
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. physics.nist.gov/cuu/Units/index.html
Provides translation of unit and prefix names for the international metric system (SI) into various languages. For some, transliterations are also given. www.metricmethods.com/SIguidelines.html