| Portici to Berga | 652.43 mi (1,049.99 km) |
| Portici to Berja | 968.29 mi (1,558.32 km) |
| Portici to Bermeo | 891.28 mi (1,434.37 km) |
| Portici to Berriozar | 834.77 mi (1,343.43 km) |
| Portici to Betanzos | 1,165.82 mi (1,876.20 km) |
| Portici to Betera | 784.81 mi (1,263.02 km) |
| Portici to Bilbao | 900.10 mi (1,448.57 km) |
| Portici to Binefar | 731.09 mi (1,176.58 km) |
| Portici to Binisalem | 611.45 mi (984.03 km) |
| Portici to Blanes | 602.40 mi (969.48 km) |
| Portici to Boadilla del Monte | 954.14 mi (1,535.54 km) |
| Portici to Boiro | 1,201.14 mi (1,933.04 km) |
| Portici to Bolanos de Calatrava | 965.39 mi (1,553.65 km) |
| Portici to Bollullos de la Mitacion | 1,121.53 mi (1,804.92 km) |
| Portici to Bollullos par del Condado | 1,142.45 mi (1,838.59 km) |
