| Porsgrunn to Bingen am Rhein | 636.22 mi (1,023.89 km) |
| Porsgrunn to Birkenau | 661.40 mi (1,064.42 km) |
| Porsgrunn to Birkenfeld | 709.24 mi (1,141.41 km) |
| Porsgrunn to Bischofsheim | 632.89 mi (1,018.53 km) |
| Porsgrunn to Bischofswerda | 579.17 mi (932.08 km) |
| Porsgrunn to Bisingen | 747.15 mi (1,202.43 km) |
| Porsgrunn to Bissendorf | 479.27 mi (771.32 km) |
| Porsgrunn to Bitburg | 644.64 mi (1,037.44 km) |
| Porsgrunn to Bitterfeld | 528.03 mi (849.79 km) |
| Porsgrunn to Blankenburg | 508.13 mi (817.76 km) |
| Porsgrunn to Blankenfelde | 488.82 mi (786.67 km) |
| Porsgrunn to Blaubeuren | 739.56 mi (1,190.21 km) |
| Porsgrunn to Bleicherode | 533.00 mi (857.78 km) |
| Porsgrunn to Blieskastel | 689.89 mi (1,110.27 km) |
| Porsgrunn to Blomberg | 496.85 mi (799.60 km) |
