Expats and tourists from the United States come to Costa Rica with a handicap. While most of the rest of the world, including Costa Rica, is using the metric system, the U.S., despite several efforts ...

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Americans have long used diverse weights and measures, reflecting their diverse origins. From colonial times, converting from one unit to another was part of courses in commercial arithmetic. The ...

So much for American exceptionalism: Democratic presidential candidate Lincoln Chafee used his campaign announcement Wednesday to urge the U.S. to switch to the metric system of weights and measures. ...

Editor’s Note: John Bemelmans Marciano is the author of ‘Whatever happened to the metric system?’. The views expressed are his own. Lincoln Chafee called for U.S. to switch to metric system John B.