| Portsmouth to Boppard | 383.07 mi (616.50 km) |
| Portsmouth to Borgentreich | 450.37 mi (724.79 km) |
| Portsmouth to Borgholzhausen | 413.63 mi (665.67 km) |
| Portsmouth to Borken | 350.53 mi (564.13 km) |
| Portsmouth to Borna | 590.84 mi (950.86 km) |
| Portsmouth to Bornheim | 353.35 mi (568.66 km) |
| Portsmouth to Bosel | 413.94 mi (666.18 km) |
| Portsmouth to Bottrop | 350.40 mi (563.92 km) |
| Portsmouth to Bovenden | 479.27 mi (771.31 km) |
| Portsmouth to Brackenheim | 466.48 mi (750.73 km) |
| Portsmouth to Brake | 441.95 mi (711.26 km) |
| Portsmouth to Brakel | 448.11 mi (721.17 km) |
| Portsmouth to Bramsche | 404.23 mi (650.54 km) |
| Portsmouth to Brand | 316.75 mi (509.76 km) |
| Portsmouth to Brand-Erbisdorf | 627.74 mi (1,010.26 km) |
