As of 23 March 2018, there are 59 Member States and 42 Associate States and Economies.
	List of Member States:   see Associate States and Economies   Argentina Indonesia Romania Australia Iran (Islamic Republic of) Russian Federation Austria Iraq Saudi Arabia Belgium Ireland Serbia Brazil Israel Singapore Bulgaria Italy Slovakia Canada Japan Slovenia Chile Kazakhstan South Africa China Kenya Spain Colombia Korea (Republic of) Sweden Croatia Lithuania Switzerland Czech Republic Malaysia Thailand Denmark Mexico Tunisia Egypt Montenegro Turkey Finland Netherlands United Arab Emirates France New Zealand United Kingdom Germany Norway United States of America Greece Pakistan Uruguay Hungary Poland Venezuela (Bolivarian Rep. of) India Portugal

Summary Notice of Contributions Calculating Member State contributions Procedure for a State to accede to the Metre Convention and become a Member State Basic texts The original signatories

Governance Text of the Metre Convention, other basic texts, and the BIPM Compendium Notice of Contributions CIPM publications Calculating Member State contributions

Meetings: NMI Directors and State Representatives