| Southgate to Bispham | 195.92 mi (315.31 km) |
| Southgate to Blackburn | 176.37 mi (283.84 km) |
| Southgate to Blackpool | 194.16 mi (312.47 km) |
| Southgate to Blairgowrie | 366.49 mi (589.81 km) |
| Southgate to Blandford Forum | 103.17 mi (166.04 km) |
| Southgate to Blaydon | 239.37 mi (385.23 km) |
| Southgate to Bletchley | 36.00 mi (57.93 km) |
| Southgate to Bloxwich | 104.64 mi (168.40 km) |
| Southgate to Blunsdon Saint Andrew | 71.37 mi (114.87 km) |
| Southgate to Blyth | 248.11 mi (399.29 km) |
| Southgate to Bo'ness | 334.52 mi (538.36 km) |
| Southgate to Bodmin | 215.04 mi (346.07 km) |
| Southgate to Bognor Regis | 63.32 mi (101.90 km) |
| Southgate to Bolsover | 120.81 mi (194.42 km) |
| Southgate to Bolton | 165.57 mi (266.46 km) |
