Canadian Metric Association

About the CMA

The Canadian Metric Association (CMA) was founded in 1969 as a non-profit organization to promote the adoption of the metric system in Canada, to conduct research into various aspects of its practical application, and to contribute to the metric education of the general public. Canada formally adopted the modern metric system (the Système International d’Unités or SI) in 1970.

About SI

In 1960 the 11th General Conference on Weights and Measures (CGPM) adopted the International System of units (SI). Unlike the British Imperial or American Standard system there is only one SI unit for each physical quantity, with several SI prefixes for decimal fractions and multiples of these units. In addition there are several derived units for specific applications and customary units for daily use.

Currently the vast majority of countries in the world officially use the SI system. British Commonwealth countries such as Canada and Britain still face substantial resistance from industries such as agriculture, construction, real estate, forestry and grocery. In Canada, the British Imperial system is no longer taught as part of the elementary or secondary public education system. The frequent use of the Imperial System by Canadians born prior to conversion and certain industries has caused many young Canadians to use some common Imperial units without knowing the Imperial system; that is, a young Canadian may know how many pounds they weigh, but not how many ounces there are in a pound, or pounds in a ton, and how many feet and inches they are tall, but not how many feet in a yard, rod, chain, furlong, or mile.

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Contact the CMA

John Bailes, President
Phone: +1-416-522-3459

Canadian Metric Association logo.

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