| Porto to Boppard | 998.71 mi (1,607.27 km) |
| Porto to Borgentreich | 1,109.61 mi (1,785.74 km) |
| Porto to Borgholzhausen | 1,097.60 mi (1,766.41 km) |
| Porto to Borken | 1,038.16 mi (1,670.76 km) |
| Porto to Borna | 1,216.00 mi (1,956.96 km) |
| Porto to Bornheim | 997.84 mi (1,605.88 km) |
| Porto to Bosel | 1,125.11 mi (1,810.68 km) |
| Porto to Bottrop | 1,026.73 mi (1,652.36 km) |
| Porto to Bovenden | 1,134.74 mi (1,826.19 km) |
| Porto to Brackenheim | 1,017.57 mi (1,637.62 km) |
| Porto to Brake | 1,156.43 mi (1,861.10 km) |
| Porto to Brakel | 1,112.97 mi (1,791.15 km) |
| Porto to Bramsche | 1,099.62 mi (1,769.66 km) |
| Porto to Brand | 967.91 mi (1,557.71 km) |
| Porto to Brand-Erbisdorf | 1,241.06 mi (1,997.29 km) |
