Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Weights & measures
Overview
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.
Featured Content
The Research
Additional Resources Links
7 Ways Measurements Help You Get Around
Metrology—the science of measurement—touches on many areas of your life, whether you realize it or not. Take just one example: transportation. Without the ability to make very precise measurements, you wouldn’t be able to get where you’re going as safely and efficiently as you do.
News
The Reason the U.S. Doesn't Use the Metric System
Webinars Now Recorded and Available On-Demand!
