The calculated distance (air line) between L'Hospitalet de Llobregat and Girona is approximately 57 miles respectively 92 kilometers.
By car or train, the actual journey to Girona is certainly longer, as only the direct route (as the crow flies) between L'Hospitalet de Llobregat and Girona has been calculated here.
Air line (approximately)
92 kilometers
50 nautical miles