| Porsgrunn to Marienheide | 561.53 mi (903.70 km) |
| Porsgrunn to Markdorf | 787.41 mi (1,267.22 km) |
| Porsgrunn to Markgroningen | 705.96 mi (1,136.13 km) |
| Porsgrunn to Markkleeberg | 551.59 mi (887.70 km) |
| Porsgrunn to Markranstadt | 548.79 mi (883.19 km) |
| Porsgrunn to Markt Indersdorf | 745.70 mi (1,200.08 km) |
| Porsgrunn to Markt Schwaben | 759.82 mi (1,222.82 km) |
| Porsgrunn to Marktheidenfeld | 640.21 mi (1,030.31 km) |
| Porsgrunn to Marktoberdorf | 785.00 mi (1,263.34 km) |
| Porsgrunn to Marktredwitz | 636.76 mi (1,024.77 km) |
| Porsgrunn to Marl | 524.53 mi (844.15 km) |
| Porsgrunn to Marpingen | 676.25 mi (1,088.32 km) |
| Porsgrunn to Marsberg | 530.75 mi (854.16 km) |
| Porsgrunn to Maxhutte-Haidhof | 691.78 mi (1,113.31 km) |
| Porsgrunn to Mayen | 614.79 mi (989.41 km) |
