The present study discusses the development of a scale to measure transformative outcomes in travelers. Transformative tourism aims at encouraging travelers to go out of their comfort zone, engage in critical thinking, and develop a more inclusive worldview. Transformative tourism is aligned with an increased desire from travelers to take part in travel experiences that go beyond mere consumption and offer opportunities for self-growth and development. A model composed of four dimensions was found to have good reliability and validity. From a practical perspective, having a scale is crucial for tourism practitioners to easily assess the success and measure the effects that different transformative program activities have on the travelers. From a theoretical perspective, this scale offers a complementary way to explore what makes transformative tourism stand apart from other more mainstream tourism experiences as well as investigate its key features across a broader audience and in diverse contexts.