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Metrology

Metric

NIST's work in the metric space includes:

basic research, such as our work on the dissemination of the SI (International System of Units, commonly known as the metric system)
a metric program that implements the national policy to establish the SI as the preferred system of weights and measures for U.S. trade and commerce. The metric program provides leadership and metrication assistance on SI use and conversion to federal agencies, state and local governments, businesses, trade associations, standards development organizations, educators, and the general public.

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Measurement League

Emerging from their environmentally shielded world headquarters at NIST, these SI superheroes are dedicated to the fight against uncertainty, imprecision and inaccuracy and to improving the quality of our lives and the things we build.

The Measurement League's work is never done. They toil tirelessly behind the scenes to make sure the measurements that interweave our lives are as accurate and precise as possible.

Check out the superheroes and videos of their escapades

News and Updates

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Recorded Webinars for Weights and Measures Available On-Demand!

Webinar training has emerged as a powerful tool for delivering flexible, accessible, and cost-effective educational content to the weights and measures community. NIST OWM receives numerous requests to provide legal metrology documentary standards and weights and measures training offerings throughout the year. Thus, we are continuously seeking new ways to meet the needs of our stakeholders while