| Southborough to Boppard | 326.82 mi (525.97 km) |
| Southborough to Borgentreich | 388.38 mi (625.04 km) |
| Southborough to Borgholzhausen | 350.48 mi (564.04 km) |
| Southborough to Borken | 287.65 mi (462.92 km) |
| Southborough to Borna | 529.80 mi (852.63 km) |
| Southborough to Bornheim | 294.51 mi (473.97 km) |
| Southborough to Bosel | 350.28 mi (563.72 km) |
| Southborough to Bottrop | 288.35 mi (464.05 km) |
| Southborough to Bovenden | 417.26 mi (671.51 km) |
| Southborough to Brackenheim | 415.15 mi (668.11 km) |
| Southborough to Brake | 378.42 mi (609.00 km) |
| Southborough to Brakel | 385.78 mi (620.85 km) |
| Southborough to Bramsche | 340.69 mi (548.28 km) |
| Southborough to Brand | 258.28 mi (415.66 km) |
| Southborough to Brand-Erbisdorf | 567.16 mi (912.76 km) |
