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
- Summer Virtual Meet-up 2024
- Metric Week 2024
Metric Week 2024 is the week of 10 October, which is in:
See if your state/territory officially supports it.
- Metric Today July/August 2024 issue published
PDF of the July/August 2024 issue of Metric Today is now available online for USMA members.
- Spring Virtual Meet-up 2024
Join us for the Spring Virtual Meet-up on 8 May 2024!
- Metric Today May/June 2024 issue published
PDF of the May/June 2024 issue of Metric Today is now available online for USMA members.
- Winter Virtual Meet-up 2024
Join us for the Winter Virtual Meet-up on 13 March 2024!
- Metric Today March/April 2024 issue published
PDF of the March/April 2024 issue of Metric Today is now available online for USMA members.
- Metric Today January/February 2024 issue published
PDF of the January/February 2024 issue of Metric Today is now available online for USMA members.
- Metric Today November/December 2023 issue published
PDF of the November/December 2023 issue of Metric Today is now available online for USMA members.
- Autumn Virtual Meet-up 2023
Join us for the Autumn Virtual Meet-up on 13 December 2023!
- Metric Week 2023
Metric Week 2023 has passed. See which states & territories officially supported it:
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: 2023-07-27