| Middlesex to Barking | 3,495.13 mi (5,624.87 km) |
| Middlesex to Barnet | 3,481.46 mi (5,602.87 km) |
| Middlesex to Barnoldswick | 3,356.55 mi (5,401.85 km) |
| Middlesex to Barnsley | 3,391.21 mi (5,457.62 km) |
| Middlesex to Barnstaple | 3,334.17 mi (5,365.82 km) |
| Middlesex to Barrhead | 3,240.87 mi (5,215.68 km) |
| Middlesex to Barri | 3,360.54 mi (5,408.27 km) |
| Middlesex to Barrow in Furness | 3,312.41 mi (5,330.80 km) |
| Middlesex to Barton upon Humber | 3,429.20 mi (5,518.77 km) |
| Middlesex to Barton upon Irwell | 3,357.84 mi (5,403.92 km) |
| Middlesex to Barwell | 3,415.77 mi (5,497.16 km) |
| Middlesex to Basford | 3,414.70 mi (5,495.43 km) |
| Middlesex to Basildon | 3,510.93 mi (5,650.29 km) |
| Middlesex to Basingstoke | 3,453.31 mi (5,557.56 km) |
| Middlesex to Bath | 3,398.58 mi (5,469.49 km) |
