| Porsgrunn to Andrychow | 745.90 mi (1,200.41 km) |
| Porsgrunn to Augustow | 621.94 mi (1,000.92 km) |
| Porsgrunn to Banino | 463.01 mi (745.15 km) |
| Porsgrunn to Barlinek | 472.29 mi (760.07 km) |
| Porsgrunn to Bartoszyce | 537.52 mi (865.05 km) |
| Porsgrunn to Bedzin | 712.00 mi (1,145.86 km) |
| Porsgrunn to Belchatow | 655.38 mi (1,054.73 km) |
| Porsgrunn to Biala Podlaska | 714.33 mi (1,149.60 km) |
| Porsgrunn to Bialogard | 426.20 mi (685.91 km) |
| Porsgrunn to Bialy Kamien | 630.97 mi (1,015.45 km) |
| Porsgrunn to Bialystok | 660.11 mi (1,062.35 km) |
| Porsgrunn to Bielawa | 642.14 mi (1,033.42 km) |
| Porsgrunn to Bielsk Podlaski | 679.66 mi (1,093.81 km) |
| Porsgrunn to Bielsko-Biala | 741.91 mi (1,193.99 km) |
| Porsgrunn to Bierun | 723.89 mi (1,165.00 km) |
