| Porsgrunn to Brescia | 938.30 mi (1,510.05 km) |
| Porsgrunn to Bressanone | 860.44 mi (1,384.74 km) |
| Porsgrunn to Bresso | 938.70 mi (1,510.69 km) |
| Porsgrunn to Brindisi | 1,326.11 mi (2,134.17 km) |
| Porsgrunn to Broni | 971.20 mi (1,562.99 km) |
| Porsgrunn to Bronte | 1,491.46 mi (2,400.27 km) |
| Porsgrunn to Brugherio | 937.39 mi (1,508.59 km) |
| Porsgrunn to Brugnera | 920.59 mi (1,481.54 km) |
| Porsgrunn to Bruino | 978.65 mi (1,574.98 km) |
| Porsgrunn to Brunico | 856.09 mi (1,377.74 km) |
| Porsgrunn to Brusciano | 1,273.90 mi (2,050.14 km) |
| Porsgrunn to Bucine | 1,083.11 mi (1,743.10 km) |
| Porsgrunn to Budrio | 1,009.30 mi (1,624.31 km) |
| Porsgrunn to Busca | 1,013.08 mi (1,630.40 km) |
| Porsgrunn to Bussolengo | 944.24 mi (1,519.61 km) |
