| Southborough to Blumberg | 435.87 mi (701.47 km) |
| Southborough to Bobenheim-Roxheim | 372.79 mi (599.94 km) |
| Southborough to Bobingen | 511.44 mi (823.08 km) |
| Southborough to Boblingen | 424.77 mi (683.61 km) |
| Southborough to Bocholt | 277.05 mi (445.87 km) |
| Southborough to Bochum | 300.84 mi (484.16 km) |
| Southborough to Bockenem | 427.31 mi (687.69 km) |
| Southborough to Bockhorn | 362.13 mi (582.79 km) |
| Southborough to Bogen | 571.67 mi (920.01 km) |
| Southborough to Bohl-Iggelheim | 375.89 mi (604.94 km) |
| Southborough to Bohmte | 354.05 mi (569.79 km) |
| Southborough to Boizenburg | 467.01 mi (751.59 km) |
| Southborough to Bonen | 324.46 mi (522.16 km) |
| Southborough to Bonn | 298.88 mi (481.00 km) |
| Southborough to Bopfingen | 474.86 mi (764.22 km) |
