| Porsgrunn to Kelkheim (Taunus) | 622.32 mi (1,001.53 km) |
| Porsgrunn to Kelsterbach | 627.32 mi (1,009.57 km) |
| Porsgrunn to Kemberg | 519.27 mi (835.69 km) |
| Porsgrunn to Kempen | 550.75 mi (886.35 km) |
| Porsgrunn to Kempten | 786.83 mi (1,266.28 km) |
| Porsgrunn to Kenzingen | 758.86 mi (1,221.27 km) |
| Porsgrunn to Kerpen | 581.82 mi (936.36 km) |
| Porsgrunn to Ketsch | 675.29 mi (1,086.78 km) |
| Porsgrunn to Kevelaer | 537.70 mi (865.35 km) |
| Porsgrunn to Kiel | 331.51 mi (533.52 km) |
| Porsgrunn to Kierspe | 557.91 mi (897.87 km) |
| Porsgrunn to Kirchhain | 574.25 mi (924.17 km) |
| Porsgrunn to Kirchheim bei Munchen | 760.35 mi (1,223.66 km) |
| Porsgrunn to Kirchheim unter Teck | 723.30 mi (1,164.03 km) |
| Porsgrunn to Kirchhundem | 557.50 mi (897.21 km) |
