In this paper we have investigated students' motivations for undertaking a full degree abroad. It examines how motivations can be categorised, and if this varies according to gender, social origin, field of study and mobility capital (previous experience of living abroad or parents who have done so). The analyses are based on a survey of Norwegian students abroad, containing information from more than 4100 respondents. The three underlying dimensions of motivations identified are "Exploration", "Pragmatism" and "Differentiation", indicating that the traditional division between push and pull motivation is too simplistic. "Exploration", the most strongly accentuated dimension, is particularly prominent among female students. "Pragmatism" is highly important for students enrolled in long, professional programmes with strict admission restrictions in Norway, such as medicine. "Differentiation" is more emphasised by students with high mobility capital. In general, motivations are more likely to vary according to field of study than sociodemographic factors, but mobility capital also exerts a substantial influence.