| Witham to Bispham | 209.06 mi (336.45 km) |
| Witham to Blackburn | 187.47 mi (301.70 km) |
| Witham to Blackpool | 207.64 mi (334.16 km) |
| Witham to Blairgowrie | 368.04 mi (592.30 km) |
| Witham to Blandford Forum | 137.36 mi (221.07 km) |
| Witham to Blaydon | 239.25 mi (385.04 km) |
| Witham to Bletchley | 59.93 mi (96.46 km) |
| Witham to Bloxwich | 125.24 mi (201.56 km) |
| Witham to Blunsdon Saint Andrew | 104.74 mi (168.56 km) |
| Witham to Blyth | 246.37 mi (396.49 km) |
| Witham to Bo'ness | 338.74 mi (545.15 km) |
| Witham to Bodmin | 249.69 mi (401.84 km) |
| Witham to Bognor Regis | 90.24 mi (145.23 km) |
| Witham to Bolsover | 127.85 mi (205.75 km) |
| Witham to Bolton | 177.79 mi (286.13 km) |
