| Southborough to Beocin | 982.99 mi (1,581.97 km) |
| Southborough to Blace | 1,120.54 mi (1,803.33 km) |
| Southborough to Bogatic | 986.28 mi (1,587.26 km) |
| Southborough to Bojnik | 1,149.45 mi (1,849.87 km) |
| Southborough to Boljevac | 1,126.43 mi (1,812.82 km) |
| Southborough to Bor | 1,120.93 mi (1,803.96 km) |
| Southborough to Borca | 1,024.75 mi (1,649.17 km) |
| Southborough to Bosilegrad | 1,201.41 mi (1,933.48 km) |
| Southborough to Brus | 1,106.56 mi (1,780.84 km) |
| Southborough to Bujanovac | 1,174.42 mi (1,890.05 km) |
| Southborough to Cacak | 1,058.30 mi (1,703.16 km) |
| Southborough to Cajetina | 1,038.45 mi (1,671.22 km) |
| Southborough to Cicevac | 1,110.09 mi (1,786.52 km) |
| Southborough to Coka | 974.79 mi (1,568.77 km) |
| Southborough to Crna Trava | 1,181.44 mi (1,901.35 km) |
