| Porsgrunn to Kalisz | 604.06 mi (972.15 km) |
| Porsgrunn to Kamien Pomorski | 404.19 mi (650.49 km) |
| Porsgrunn to Kamienna Gora | 627.35 mi (1,009.61 km) |
| Porsgrunn to Karczew | 660.80 mi (1,063.46 km) |
| Porsgrunn to Kartuzy | 460.60 mi (741.27 km) |
| Porsgrunn to Katowice | 714.02 mi (1,149.10 km) |
| Porsgrunn to Kedzierzyn-Kozle | 692.69 mi (1,114.77 km) |
| Porsgrunn to Kepno | 630.85 mi (1,015.25 km) |
| Porsgrunn to Ketrzyn | 562.63 mi (905.46 km) |
| Porsgrunn to Kety | 740.60 mi (1,191.87 km) |
| Porsgrunn to Kielce | 713.45 mi (1,148.18 km) |
| Porsgrunn to Kielczow | 624.15 mi (1,004.48 km) |
| Porsgrunn to Klobuck | 672.75 mi (1,082.68 km) |
| Porsgrunn to Klodzko | 659.75 mi (1,061.77 km) |
| Porsgrunn to Kluczbork | 653.90 mi (1,052.36 km) |
