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Metrology: Building Trust in Policy Making

Welcome to the 2026 BIPM-OIML World Metrology Day Resource website.

The theme for World Metrology Day 2026 is:

"Metrology: Building Trust in Policy Making".

This website is designed to provide the metrology community with communication resources to help them promote World Metrology Day around the globe.

These resources are supplied free of charge. In return, we ask users to share their activities, posters and other related media for promotion purposes.


The World Metrology Day Poster

The official 2026 World Metrology Day poster is coming soon

The 2026 poster was designed in association with A*STAR NMC

How to use the Poster

We invite stakeholders - including national metrology institutes, academic institutions, industry partners and policymakers - to use this Poster in your outreach efforts. It can be displayed at events, shared online, and used as an educational tool to:

  • Promote the importance of metrology within specific sectors.
  • Inspire discussions about the role of accurate measurements in achieving sustainability goals.
  • Enhance awareness of the Metre Convention's historical and future impact.



For more information on this important day




World Metrology Day is the annual celebration of the signature of the Metre Convention on 20 May 1875 by representatives of seventeen nations. The Convention set the framework for global collaboration in the science of measurement and in its industrial, commercial and societal applications. The original aim of the Metre Convention - the world-wide uniformity of measurement - remains as important today as it was in 1875.

The World Metrology Day project is realized jointly by the BIPM and the OIML. We hope that you enjoy this site and that your Country or Metrology Organization will join us and participate in this year's event.

Warm regards,

The WMD Team