The calculated distance (air line) between Caldes de Montbui and Santa Coloma de Gramenet is approximately 13 miles respectively 21 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 Caldes de Montbui and Santa Coloma de Gramenet has been calculated here.
Air line (approximately)
21 kilometers
11 nautical miles