| Portsmouth to Brescia | 634.43 mi (1,021.01 km) |
| Portsmouth to Bressanone | 644.45 mi (1,037.14 km) |
| Portsmouth to Bresso | 596.33 mi (959.70 km) |
| Portsmouth to Brindisi | 1,150.08 mi (1,850.88 km) |
| Portsmouth to Broni | 621.08 mi (999.53 km) |
| Portsmouth to Bronte | 1,190.47 mi (1,915.87 km) |
| Portsmouth to Brugherio | 599.83 mi (965.33 km) |
| Portsmouth to Brugnera | 709.81 mi (1,142.33 km) |
| Portsmouth to Bruino | 562.26 mi (904.87 km) |
| Portsmouth to Brunico | 653.02 mi (1,050.93 km) |
| Portsmouth to Brusciano | 1,007.88 mi (1,622.03 km) |
| Portsmouth to Bucine | 780.66 mi (1,256.34 km) |
| Portsmouth to Budrio | 727.45 mi (1,170.71 km) |
| Portsmouth to Busca | 588.54 mi (947.16 km) |
| Portsmouth to Bussolengo | 661.37 mi (1,064.37 km) |
