On 2 July 2025, the European Olympic Committees (EOC) EU Office, in close collaboration with the International Olympic Committee (IOC) and the Association of National Olympic Committees (ANOC), officially launched the OCEAN Sport CO₂ Calculator—the first free, global carbon calculator specifically developed for sport organisations. 

This milestone marks a major step forward in enabling the sport sector to better understand, measure, and reduce its carbon footprint. Developed by the Oeko-Institut as part of the EU-funded OCEAN Project, coordinated by Eva Rebmann (Deputy Director of the EOC EU Office), the calculator provides a science-based, user-friendly tool designed to support sport organisations in implementing effective climate strategies. The tool adheres to the internationally recognised Greenhouse Gas (GHG) Protocol and integrates country-specific emission factors to ensure accurate and contextualised calculations. 

Tailored to the day-to-day operations of sport bodies—including National Olympic Committees (NOCs), federations, and clubs—the calculator was built with direct input from 18 European NOCs and several international federations. As highlighted by Folker Hellmund, Director of the EOC EU Office, the OCEAN Tool is “practical, multilingual, and rooted in the real needs of sport organisations.” The calculator is currently available in English, French, and Spanish, making it accessible to a wide range of users across continents. 

One of the key strengths of the calculator lies in its ability to go beyond simple measurement. It allows users to identify high-impact areas and includes a reduction illustration feature, helping organisations define and visualise carbon reduction targets. As Tobias Wagner, Senior Researcher at the Oeko-Institut, emphasised: “Only with the knowledge about their individual emission hot spots can organisations invest in the most impactful measures.” 

The development and launch of the calculator reflect the shared commitment of the IOC, ANOC and EOC EU Office to support the sport sector in addressing the climate crisis. Julie Duffus, IOC Head of Sustainability, and Andres Santi, Senior Manager at ANOC, both underlined the importance of providing sport organisations with accessible, efficient, and reliable tools to take action. “We are proud to offer NOCs and federations a resource that enables them to take ownership of their impact and act strategically,” they stated jointly. 

This launch builds on two years of collaborative work within the OCEAN Project to strengthen climate governance in sport. By providing the tools necessary to move from intention to action, the OCEAN Sport CO₂ Calculator serves as a concrete example of how the sport movement can contribute to global sustainability efforts, including those outlined in the UN Sports for Climate Action Framework. 

The OCEAN Sport CO₂ Calculator is now freely available to all NOCs and sport organisations worldwide. 

More information and access to the tool: https://sportco2calculator.com