Looking around the world, how many countries haven’t yet adopted the metric system? Â ZME ScienceÂ points out that there are exactly 3 countries that haven’t yet adopted it. Â That would be:
- United States of America
Well, that would be the “official” adoption. Â Smart people in the USA (doctors, physists, etc.) have been using metric for years. Â It’s just the unwashed masses.