December 23, 2025, marks the 50th anniversary of the Metric Conversion Act, designed to bring US weights and measures in line ...

Ever wondered what happened to our country’s conversion to the metric system? I did too. So, I did some digging and turned up some dead bodies in the process. Advertisement Article continues below ...

Most Americans believe the country rejected the metric system decades ago. In reality, US measurements like feet, pounds, and ...

Metric units have conquered the globe, but in the US and the UK, their presence has become part of a culture war between ‘traditional’ and ‘progressive’ values. is a senior reporter who has covered AI ...

Now that the United Kingdom is outside the European Union, it’s reviewing thousands of EU rules and regulations to see which it should jettison. Among them is the compulsory use of the metric system ...

Have you ever noticed that the standard system of measurement tends to change when you exit the United States? Clothing sizes are often measured in centimeters instead of inches, distance is measured ...

Following the loss of the Mars Climate Observer, the NASA Office of Inspector General initiated a review of the Agency’s use of the metric system. By law and policy, the metric system is the preferred ...

I-19 in southern AZ is the only metric interstate in U.S. TUCSON, AZ — Former Scripps News Tucson traffic reporter Allen "Big Al" Kath points out a large sign on a recent drive along Interstate 19. He ...

Here’s a good trivia question: What are the only 3 countries in the world that do not use the metric system? Everybody knows the good ol’ hard headed USA is in there, but the other two? How about ...

TUCSON, Ariz. (KGUN) — Former KGUN 9 traffic reporter Allen "Big Al" Kath points out a large sign on a recent drive along Interstate 19. He reads it out loud: "Metric signs in use on I-19." The ...

The Imperial Measurement System, originated in Britain in 1824, is now primarily used by only three countries: the United States, Liberia, and Myanmar. Defined by non-decimal units like inches, pounds ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American I’ve met a lot of people and learned a lot ...