The calculated distance (air line) between Polinyà and Santa Coloma de Gramenet is approximately 7 miles respectively 12 kilometers.
By car or train, the actual journey to Santa Coloma de Gramenet is certainly longer, as only the direct route (as the crow flies) between Polinyà and Santa Coloma de Gramenet has been calculated here.
Air line (approximately)
12 kilometers
6 nautical miles