We are pleased to announce that our website dedicated to the 150th anniversary of the Metre Convention is LIVE.

Access the page to discover:

• Key events during 20-22 May 2025 (Paris, Versailles and online)
• Historical milestones that have marked 150 years of global scientific collaboration, precision measurement and innovation.
• Pre-registration for flagship events.

This website will be updated with further details as the anniversary approaches.

Anniversary site