| Southborough to Bitonto | 1,044.24 mi (1,680.54 km) |
| Southborough to Bitritto | 1,052.93 mi (1,694.53 km) |
| Southborough to Bollate | 560.88 mi (902.64 km) |
| Southborough to Bologna | 688.72 mi (1,108.39 km) |
| Southborough to Bolzano | 597.52 mi (961.61 km) |
| Southborough to Bomporto | 666.25 mi (1,072.23 km) |
| Southborough to Bonate di Sopra | 569.38 mi (916.33 km) |
| Southborough to Bondeno | 672.26 mi (1,081.90 km) |
| Southborough to Bordighera | 615.15 mi (989.99 km) |
| Southborough to Borgaro Torinese | 536.37 mi (863.21 km) |
| Southborough to Borgo a Buggiano | 699.65 mi (1,125.97 km) |
| Southborough to Borgo San Dalmazzo | 578.12 mi (930.40 km) |
| Southborough to Borgo San Lorenzo | 717.52 mi (1,154.74 km) |
| Southborough to Borgomanero | 532.01 mi (856.19 km) |
| Southborough to Borgoricco | 662.70 mi (1,066.52 km) |
