| Portchester to Boppard | 384.62 mi (618.99 km) |
| Portchester to Borgentreich | 451.31 mi (726.32 km) |
| Portchester to Borgholzhausen | 414.32 mi (666.78 km) |
| Portchester to Borken | 351.29 mi (565.35 km) |
| Portchester to Borna | 591.94 mi (952.64 km) |
| Portchester to Bornheim | 354.67 mi (570.79 km) |
| Portchester to Bosel | 414.19 mi (666.58 km) |
| Portchester to Bottrop | 351.33 mi (565.41 km) |
| Portchester to Bovenden | 480.22 mi (772.83 km) |
| Portchester to Brackenheim | 468.36 mi (753.75 km) |
| Portchester to Brake | 442.10 mi (711.50 km) |
| Portchester to Brakel | 449.00 mi (722.59 km) |
| Portchester to Bramsche | 404.76 mi (651.40 km) |
| Portchester to Brand | 318.10 mi (511.93 km) |
| Portchester to Brand-Erbisdorf | 628.91 mi (1,012.14 km) |
