| Harrow to Brescia | 637.56 mi (1,026.05 km) |
| Harrow to Bressanone | 637.10 mi (1,025.31 km) |
| Harrow to Bresso | 602.96 mi (970.38 km) |
| Harrow to Brindisi | 1,151.46 mi (1,853.10 km) |
| Harrow to Broni | 629.77 mi (1,013.52 km) |
| Harrow to Bronte | 1,205.42 mi (1,939.94 km) |
| Harrow to Brugherio | 605.96 mi (975.19 km) |
| Harrow to Brugnera | 704.56 mi (1,133.87 km) |
| Harrow to Bruino | 577.97 mi (930.15 km) |
| Harrow to Brunico | 644.53 mi (1,037.27 km) |
| Harrow to Brusciano | 1,016.43 mi (1,635.79 km) |
| Harrow to Bucine | 788.47 mi (1,268.92 km) |
| Harrow to Budrio | 731.21 mi (1,176.76 km) |
| Harrow to Busca | 606.42 mi (975.94 km) |
| Harrow to Bussolengo | 662.91 mi (1,066.84 km) |
