Our world economy is only 9.1% circular, leaving a massive ‘"circularity gap". This alarming statistic is the main output of this first Circularity Gap Report, in which we launch a metric for the circular state of the planet. The Circularity Gap Report provides a framework and fact-based to measure and monitor progress in bridging the gap, year on year. Being able to track and target performance via the Global Circularity Metric will help us engage in uniform goal-setting and guide future action in the most impactful way. Closing the circularity gap serves the higher objective of preventing further and accelerated environmental degradation and social inequality. The transition to circularity is, therefore, a means to an end. As a multi stakeholder model, a circular economy has the ability to unite a global community behind an action agenda, engaged and empowered both collectively and individually. Its systemic approach boosts capacity and capability to serve societal needs, by embracing and endorsing the best humankind has to offer: the power of entrepreneurship, innovation and collaboration.