| Porsgrunn to Bumbesti-Jiu | 1,119.09 mi (1,801.00 km) |
| Porsgrunn to Busteni | 1,153.18 mi (1,855.86 km) |
| Porsgrunn to Buzau | 1,199.69 mi (1,930.72 km) |
| Porsgrunn to Cajvana | 1,028.87 mi (1,655.80 km) |
| Porsgrunn to Calafat | 1,185.32 mi (1,907.58 km) |
| Porsgrunn to Calan | 1,076.55 mi (1,732.53 km) |
| Porsgrunn to Calarasi | 1,269.32 mi (2,042.77 km) |
| Porsgrunn to Campia Turzii | 1,045.91 mi (1,683.23 km) |
| Porsgrunn to Campina | 1,174.98 mi (1,890.95 km) |
| Porsgrunn to Campulung | 1,150.44 mi (1,851.46 km) |
| Porsgrunn to Campulung Moldovenesc | 1,028.11 mi (1,654.58 km) |
| Porsgrunn to Caracal | 1,206.05 mi (1,940.95 km) |
| Porsgrunn to Caransebes | 1,080.00 mi (1,738.09 km) |
| Porsgrunn to Carei | 945.20 mi (1,521.15 km) |
| Porsgrunn to Cernavoda | 1,278.41 mi (2,057.41 km) |
