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We measure today for a sustainable tomorrow

Welcome to the 2024 World Metrology Day Resource website. The theme for World Metrology Day 2024 is Sustainability.

This year marks the official recognition by UNESCO of 20 May each year as a UNESCO International Day. This designation opens new avenues to promote metrology, aligning with UNESCO’s mission to construct a better world through science and education.

Following the launch event held at the UNESCO Headquarters in Paris on 14 May 2024 to celebrate 20 May becoming a UNESCO International Day, a web page has been published by UNESCO with a video explaining the importance of metrology, and also a special message from Audrey Azoulay, the UNESCO Director-General.

Metrology provides the foundation for data-driven decision-making and policy development in sustainability. By ensuring accurate measurements across various aspects of sustainability, it helps organizations, governments and individuals make informed choices that contribute to a more sustainable future.

Our focus for World Metrology Day in 2024 is on the numerous measurement opportunities that contribute to the establishment of a sustainable global economy and environment.

The 2024 poster was designed in association with EURAMET and TÜBİTAK UME, Türkiye.

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