| Southborough to Borgosatollo | 602.62 mi (969.82 km) |
| Southborough to Borgosesia | 524.74 mi (844.49 km) |
| Southborough to Boscoreale | 987.59 mi (1,589.38 km) |
| Southborough to Boscotrecase | 986.15 mi (1,587.06 km) |
| Southborough to Botticino Sera | 599.63 mi (965.01 km) |
| Southborough to Bovalino Marina | 1,185.98 mi (1,908.65 km) |
| Southborough to Boves | 579.91 mi (933.28 km) |
| Southborough to Boville Ernica | 906.92 mi (1,459.54 km) |
| Southborough to Bovisio Masciago | 558.63 mi (899.02 km) |
| Southborough to Bovolone | 644.76 mi (1,037.64 km) |
| Southborough to Bra | 567.27 mi (912.94 km) |
| Southborough to Bracciano | 841.48 mi (1,354.23 km) |
| Southborough to Brandizzo | 540.42 mi (869.72 km) |
| Southborough to Breganze | 639.76 mi (1,029.60 km) |
| Southborough to Brembate | 572.90 mi (921.99 km) |
