| Porsgrunn to Marianske Lazne | 643.37 mi (1,035.40 km) |
| Porsgrunn to Melnik | 634.33 mi (1,020.85 km) |
| Porsgrunn to Milovice | 647.65 mi (1,042.29 km) |
| Porsgrunn to Mlada Boleslav | 635.51 mi (1,022.75 km) |
| Porsgrunn to Mnichovo Hradiste | 628.79 mi (1,011.95 km) |
| Porsgrunn to Mohelnice | 706.31 mi (1,136.69 km) |
| Porsgrunn to Moravska Trebova | 703.46 mi (1,132.12 km) |
| Porsgrunn to Most | 615.00 mi (989.74 km) |
| Porsgrunn to Nachod | 653.05 mi (1,050.98 km) |
| Porsgrunn to Neratovice | 640.92 mi (1,031.46 km) |
| Porsgrunn to Nova Paka | 638.37 mi (1,027.35 km) |
| Porsgrunn to Nove Mesto na Morave | 707.39 mi (1,138.43 km) |
| Porsgrunn to Nove Mesto nad Metuji | 657.54 mi (1,058.20 km) |
| Porsgrunn to Novy Bor | 608.27 mi (978.91 km) |
| Porsgrunn to Novy Jicin | 736.60 mi (1,185.44 km) |
