| Portici to Bitonto | 123.90 mi (199.40 km) |
| Portici to Bitritto | 131.05 mi (210.90 km) |
| Portici to Bollate | 419.44 mi (675.02 km) |
| Portici to Bologna | 296.02 mi (476.40 km) |
| Portici to Bolzano | 419.69 mi (675.43 km) |
| Portici to Bomporto | 318.15 mi (512.01 km) |
| Portici to Bonate di Sopra | 412.93 mi (664.55 km) |
| Portici to Bondeno | 317.39 mi (510.79 km) |
| Portici to Bordighera | 397.63 mi (639.93 km) |
| Portici to Borgaro Torinese | 451.26 mi (726.24 km) |
| Portici to Borgo a Buggiano | 280.55 mi (451.51 km) |
| Portici to Borgo San Dalmazzo | 424.82 mi (683.69 km) |
| Portici to Borgo San Lorenzo | 263.71 mi (424.40 km) |
| Portici to Borgomanero | 448.15 mi (721.23 km) |
| Portici to Borgoricco | 345.84 mi (556.58 km) |
