US Metric Association

US Metric Association

The US Metric Association (USMA), Inc., is a national non-profit organization that was founded in 1916. USMA advocates completing the US transition to the International System of Units, known by the abbreviation SI (“ess-eye”) and also called the metric system. The process of changing measurement units to the metric system is called metric transition or metrication.

What’s new

Is your company or organization going metric? We’d like to know.

Perhaps your hospital is changing over to measuring patients’ height and weight in metric units only, or your company’s product line is going hard metric. We’d be very interested in the how and the why, and with your permission, we’ll tell your story in our newsletter, Metric Today. Please contact USMA.

Need metric supplies?

The USMA offers a selection of books, charts, posters, rulers, measuring tapes, bumper stickers, and thermometers specifically for learning the metric system. These and more items can be found on the USMA shop.

Feedback

Your comments, suggestions, and questions are welcome. Please contact the USMA.

Last updated: 2025-05-07

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