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Weights & Measures

NIST works to improve the accuracy of measurements, enhance consumer protection, foster fair competition, and facilitate economic growth and trade through technical activities that promote uniformity in national and international legal metrology laws, regulations, standards, test procedures and enforcement.

For more information about Weights & Measures, visit the Office of Weights & Measures (OWM) site.

Taking Measure Blog Posts

Weighing Your Purchases: How New Laws May Help You Become a Savvier Online Shopper

4 Places Weights and Measures Help You Get What You Pay For

Busting Myths about the Metric System

News

New NIST OWM Contacts System is Open for Business

The Office of Weights and Measures (OWM) Contacts System customer portal is open for business. NIST OWM officially launched the new online portal for the OWM Contacts System on September 3, 2024. The new portal is the primary hub for requesting OWM products and services, including OWM publications, training classes, and full access to your training history. New Landing Page We are excited to offer

Unit Pricing Best Practice Guide (NIST SP 1181) and Handbook 130 Uniform Unit Pricing Regulation

A Better Balance for Tiny Liquid Masses

Metric Week 2024: Measure Up with Metric Education

Featured Videos

OWM Info Hours: Uniform E-Commerce Model Regulation

OWM Info Hours: Uniform E-Commerce Model Regulation

OWM Info Hours: Digitalization of NIST Handbooks

OWM Info Hours: Digitalization of NIST Handbooks