The BIPM and the OIML are pleased to announce the theme of World Metrology Day 2026:

Metrology: Building Trust in Policy Making

Measurement underpins informed decision-making. From trade and innovation to public health and emerging technologies, reliable measurement provides the evidence base on which sound policy — and public trust — depend.

To start the conversation, we encourage you to watch one of the messages shared on this topic during last year’s 150th Anniversary celebrations of the Metre Convention:

The official World Metrology Day 2026 poster and supporting materials will be released in the coming weeks.

Stay tuned!