| Portici to Belvedere Marittimo | 115.70 mi (186.20 km) |
| Portici to Benevento | 31.65 mi (50.93 km) |
| Portici to Bergamo | 410.58 mi (660.77 km) |
| Portici to Bernalda | 125.95 mi (202.70 km) |
| Portici to Bertinoro | 256.10 mi (412.16 km) |
| Portici to Besana in Brianza | 422.26 mi (679.57 km) |
| Portici to Besozzo | 449.33 mi (723.12 km) |
| Portici to Biancavilla | 220.80 mi (355.35 km) |
| Portici to Biassono | 419.19 mi (674.62 km) |
| Portici to Bibbiano | 330.52 mi (531.92 km) |
| Portici to Bibbiena | 237.18 mi (381.71 km) |
| Portici to Biella | 455.21 mi (732.58 km) |
| Portici to Bisceglie | 116.53 mi (187.53 km) |
| Portici to Bisignano | 136.45 mi (219.60 km) |
| Portici to Bitetto | 126.61 mi (203.76 km) |
