| Southborough to Bonhill | 387.55 mi (623.71 km) |
| Southborough to Bonnyrigg | 353.83 mi (569.44 km) |
| Southborough to Bootle | 209.36 mi (336.93 km) |
| Southborough to Borehamwood | 41.48 mi (66.75 km) |
| Southborough to Boscombe | 96.45 mi (155.21 km) |
| Southborough to Boston | 125.94 mi (202.68 km) |
| Southborough to Bottesford | 169.95 mi (273.50 km) |
| Southborough to Bourne | 114.46 mi (184.21 km) |
| Southborough to Bournemouth | 98.21 mi (158.06 km) |
| Southborough to Bournville | 128.62 mi (206.99 km) |
| Southborough to Bovingdon | 52.03 mi (83.74 km) |
| Southborough to Bowdon | 189.25 mi (304.56 km) |
| Southborough to Boxley | 15.54 mi (25.01 km) |
| Southborough to Brackley | 85.47 mi (137.55 km) |
| Southborough to Bracknell | 47.26 mi (76.06 km) |
