 Bojańczyk was born 29 June 1946 in Toruń to Janina (née Chudzik) and Jan Bojańczyk, a skating coach.He graduated with a Magister degree in physics from Nicolaus Copernicus University in Toruń and then studied at the Warsaw University of Technology.With his wife Ewa, he has three children — Przemysław, Dominika, and Anna — and moved to Canada in 1989.