| Porsgrunn to Koscielisko | 792.13 mi (1,274.81 km) |
| Porsgrunn to Koscierzyna | 466.49 mi (750.74 km) |
| Porsgrunn to Kostrzyn | 547.88 mi (881.72 km) |
| Porsgrunn to Kostrzyn nad Odra | 489.93 mi (788.47 km) |
| Porsgrunn to Koszalin | 418.86 mi (674.10 km) |
| Porsgrunn to Kowary | 623.71 mi (1,003.77 km) |
| Porsgrunn to Kozienice | 696.42 mi (1,120.78 km) |
| Porsgrunn to Kozuchow | 558.33 mi (898.55 km) |
| Porsgrunn to Kozy | 741.30 mi (1,193.00 km) |
| Porsgrunn to Krakow | 745.85 mi (1,200.33 km) |
| Porsgrunn to Krapkowice | 680.97 mi (1,095.91 km) |
| Porsgrunn to Krasnik | 750.16 mi (1,207.26 km) |
| Porsgrunn to Krasnystaw | 771.90 mi (1,242.25 km) |
| Porsgrunn to Krosno | 809.34 mi (1,302.51 km) |
| Porsgrunn to Krosno Odrzanskie | 532.30 mi (856.65 km) |
