×

Warning

EU e-Privacy Directive

This website uses technical, analytics and third parties cookies to get statistical data processing and quality control, and to allow you to share information with social networks. Please note that if you use the functions that interact with social networks, these could track your navigation with their cookies. To learn more on all our cookies, how to disable them or deny your consent, please read the privacy policy.

View Privacy Policy

You have declined cookies. This decision can be reversed.

The International System of Units

A vision of the current SI

For a comprehensive and up-to-date description of the International System of Units, please refer to the BIPM pages at

http://www.bipm.org/fr/si/ for French

http://www.bipm.org/en/si/ for English

Image