The Bureau International des Poids et Mesures (BIPM) and IOP Publishing (IOPP) will convert Metrologia, the leading international journal in pure and applied metrology to a fully open access (OA) publishing model.
The move reflects the growing global demand for open science and underscores both BIPM’s and IOPP’s commitment to making universal access to research a reality. It also aligns with funder mandates that require publicly funded research to be published in OA journals.
From January 1, 2026, all new articles published in Metrologia will be freely accessible to readers worldwide, removing barriers to knowledge and significantly enhancing the visibility and impact of the journal’s content.
IOPP, which has co-published Metrologia with BIPM since 2003, has successfully supported similar transitions to fully OA for the American Astronomical Society, the International Atomic Energy Agency, and the Japan Society of Applied Physics.
“Open access is a natural evolution for Metrologia, ensuring that the journal continues to serve the global metrology community while supporting the principles of transparency, accessibility, and equity in science,” says Martin Milton, Director of BIPM.
“We’re proud to support BIPM in making Metrologia more accessible to researchers and readers around the world. This transition reflects our shared commitment to open science and to supporting our publishing partners through sustainable and inclusive open access models,” adds Violeta Ribarska, Head of Partner Publishing and Engagement at IOP Publishing.
To support the transition, any articles submitted after 18 August 2025 will be processed as open access submissions. Metrologia will be included in IOPP’s transformative agreements, allowing authors affiliated with participating institutions to publish OA without incurring direct costs.
For more information visit: IOPscience – Publishing Support