| Southwater to Bonhill | 383.76 mi (617.60 km) |
| Southwater to Bonnyrigg | 353.69 mi (569.20 km) |
| Southwater to Bootle | 201.09 mi (323.62 km) |
| Southwater to Borehamwood | 43.94 mi (70.72 km) |
| Southwater to Boscombe | 68.06 mi (109.52 km) |
| Southwater to Boston | 135.48 mi (218.03 km) |
| Southwater to Bottesford | 175.21 mi (281.97 km) |
| Southwater to Bourne | 120.54 mi (194.00 km) |
| Southwater to Bournemouth | 69.83 mi (112.37 km) |
| Southwater to Bournville | 118.43 mi (190.60 km) |
| Southwater to Bovingdon | 48.97 mi (78.80 km) |
| Southwater to Bowdon | 183.51 mi (295.33 km) |
| Southwater to Boxley | 43.31 mi (69.71 km) |
| Southwater to Brackley | 77.58 mi (124.85 km) |
| Southwater to Bracknell | 32.07 mi (51.61 km) |
