Positive identification of unknown corpses and bone remains often pose significant challenges for practitioners and requires the use of forensic anthropological methods. The purpose of this study was to develop new methods for reconstructing the antemortem biacromial breadth of the shoulders (BAB) using osteometric measurements of the human clavicle. For this purpose, bone samples from two anatomical collections were used: collection of the Department of Anthropology of Lomonosov Moscow State University and collection of the Russian Center for Forensic Medical Examination (Moscow, Russia). The study showed the possibility of correct reconstruction of BAB using regression equations with expanded (13) or reduced (3-5) sets of osteometric parameters. The methods described in the article can be applied both in forensic context and in anthropological studies.