The 14-item Intuitive Exercise Scale (IEXS; Reel et al., 2016) measures an individual’s adaptive relationship with exercise. Intuitive exercise is an exercise-specific parallel concept to intuitive eating; it entails listening to bodily cues for when to start or stop exercising, being mindful and having sensory awareness during exercise, and opting for diverse types of movement to maximize enjoyment. Intuitive exercise is distinguishable from other exercise constructs such as exercise abuse, excessive exercise, dysfunctional exercise, and exercise addiction. The IEXS can be administered online or in-person to adults and is free to use. This chapter first discusses the development of the IEXS and then provides evidence of its psychometrics. More specifically, the IEXS has a 4-factor structure via exploratory and confirmatory factor analysis among nonclinical samples (emotional exercise, body trust, exercise rigidity, and mindful exercise) and a 3-factor structure among women with eating disorders (emotional exercise, body intuition, and exercise variety). Internal consistency reliability, convergent validity, and incremental validity support the use of the IEXS. Next, this chapter provides the IEXS items in their entirety, instructions for administration and scoring, and the item response scale. A link to a Lithuanian translation is included. Logistics of use, such as permissions, copyright, and contact information, are available for readers.