| Porsgrunn to Chambray-les-Tours | 892.98 mi (1,437.11 km) |
| Porsgrunn to Chamonix-Mont-Blanc | 919.16 mi (1,479.24 km) |
| Porsgrunn to Champigny-sur-Marne | 768.24 mi (1,236.37 km) |
| Porsgrunn to Champs-Sur-Marne | 764.60 mi (1,230.51 km) |
| Porsgrunn to Chanteloup-les-Vignes | 765.40 mi (1,231.79 km) |
| Porsgrunn to Chantepie | 889.56 mi (1,431.61 km) |
| Porsgrunn to Chantilly | 745.06 mi (1,199.06 km) |
| Porsgrunn to Chaponost | 948.93 mi (1,527.16 km) |
| Porsgrunn to Charenton-le-Pont | 769.33 mi (1,238.11 km) |
| Porsgrunn to Charleville-Mezieres | 675.58 mi (1,087.24 km) |
| Porsgrunn to Chartres | 808.04 mi (1,300.41 km) |
| Porsgrunn to Chassieu | 944.64 mi (1,520.24 km) |
| Porsgrunn to Chateau-d'Olonne | 990.76 mi (1,594.48 km) |
| Porsgrunn to Chateau-Gontier | 887.35 mi (1,428.05 km) |
| Porsgrunn to Chateau-Thierry | 740.40 mi (1,191.56 km) |
