The motivation to belong is a fundamental social and psychological need that influences individuals' well-being and behavior in society. There is currently significant research activity in this field, driven by increasing interest in areas such as social robotics, the Internet of Things (IoT), and complex systems. This article presents a computational model that quantifies a weighted Belonging Score (B) as a function of seven socio-cognitive features: group identity, social interaction, acceptance/rejection, social memory, reciprocity, reputation, and utility.