| Harrow Weald to Borgosatollo | 641.89 mi (1,033.02 km) |
| Harrow Weald to Borgosesia | 564.70 mi (908.80 km) |
| Harrow Weald to Boscoreale | 1,027.40 mi (1,653.43 km) |
| Harrow Weald to Boscotrecase | 1,025.96 mi (1,651.12 km) |
| Harrow Weald to Botticino Sera | 638.86 mi (1,028.15 km) |
| Harrow Weald to Bovalino Marina | 1,225.97 mi (1,973.00 km) |
| Harrow Weald to Boves | 620.16 mi (998.05 km) |
| Harrow Weald to Boville Ernica | 946.74 mi (1,523.63 km) |
| Harrow Weald to Bovisio Masciago | 598.30 mi (962.88 km) |
| Harrow Weald to Bovolone | 683.75 mi (1,100.39 km) |
| Harrow Weald to Bra | 607.53 mi (977.72 km) |
| Harrow Weald to Bracciano | 881.49 mi (1,418.62 km) |
| Harrow Weald to Brandizzo | 580.63 mi (934.43 km) |
| Harrow Weald to Breganze | 678.13 mi (1,091.34 km) |
| Harrow Weald to Brembate | 612.41 mi (985.58 km) |
