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Office of Weights and Measures

NIST OWM establishes uniformity, equity, SI use, and traceability in weights and measures by advancing national and international legal metrology standards, procedures, capabilities, and training.

The NIST Office of Weights and Measures (OWM) works to ensure that consumers get what they pay for, and sellers get fair payment for the goods and services they sell, by promoting a uniform and technically sound system of weights and measures. This, in turn, promotes consumer confidence and helps ensure fair competition for U.S. commerce that spans from local business operations to a global scale.

To learn more about OWM and its roles and responsibilities, click About Us.

Originally established in 1836 as the “Office of Construction of Standard Weights and Measures”, OWM remains the oldest office at NIST. For more information, see A Brief History of OWM.

Projects and Programs

Blogs

Busting Myths about the Metric System

This year will be the 45th anniversary of the Metric Conversion Act , which was signed on December 23, 1975, by President Gerald R. Ford. Normally, we celebrate

Newsletter Articles and Updates

2024 National Price Verification Survey

NIST Office of Weights and Measures (OWM) is collaborating with the National Conference on Weights and Measures (NCWM) , together with 28 state and 38 local

Awards

Events

5905 Volume Metrology Seminar

Mon, Apr 1 - Fri, Apr 5 2024
The 5-day OWM Volume Metrology Seminar is designed to enable metrologists to apply fundamental measurement concepts to

5856 Volume Metrology Seminar

Mon, Apr 8 - Fri, Apr 12 2024
The 5-day OWM Volume Metrology Seminar is designed to enable metrologists to apply fundamental measurement concepts to

Contacts

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