| Portchester to Blumberg | 481.10 mi (774.26 km) |
| Portchester to Bobenheim-Roxheim | 427.81 mi (688.49 km) |
| Portchester to Bobingen | 563.09 mi (906.21 km) |
| Portchester to Boblingen | 475.79 mi (765.71 km) |
| Portchester to Bocholt | 340.73 mi (548.35 km) |
| Portchester to Bochum | 363.68 mi (585.29 km) |
| Portchester to Bockenem | 490.91 mi (790.05 km) |
| Portchester to Bockhorn | 425.59 mi (684.92 km) |
| Portchester to Bogen | 627.81 mi (1,010.36 km) |
| Portchester to Bohl-Iggelheim | 429.66 mi (691.48 km) |
| Portchester to Bohmte | 418.10 mi (672.86 km) |
| Portchester to Boizenburg | 531.01 mi (854.57 km) |
| Portchester to Bonen | 387.54 mi (623.69 km) |
| Portchester to Bonn | 358.95 mi (577.67 km) |
| Portchester to Bopfingen | 528.57 mi (850.66 km) |
