| Porsgrunn to Rouvroy | 660.12 mi (1,062.35 km) |
| Porsgrunn to Royan | 1,033.78 mi (1,663.71 km) |
| Porsgrunn to Rueil-Malmaison | 769.61 mi (1,238.57 km) |
| Porsgrunn to Rumilly | 928.65 mi (1,494.51 km) |
| Porsgrunn to Sable-sur-Sarthe | 879.59 mi (1,415.56 km) |
| Porsgrunn to Saint-Amand-les-Eaux | 648.41 mi (1,043.51 km) |
| Porsgrunn to Saint-Amand-Montrond | 906.09 mi (1,458.21 km) |
| Porsgrunn to Saint-Andre | 640.72 mi (1,031.14 km) |
| Porsgrunn to Saint-Andre-de-Cubzac | 1,064.03 mi (1,712.40 km) |
| Porsgrunn to Saint-Andre-les-Vergers | 782.94 mi (1,260.01 km) |
| Porsgrunn to Saint-Ave | 938.12 mi (1,509.76 km) |
| Porsgrunn to Saint-Avertin | 890.88 mi (1,433.74 km) |
| Porsgrunn to Saint-Avold | 702.14 mi (1,129.99 km) |
| Porsgrunn to Saint-Barthelemy-d'Anjou | 906.16 mi (1,458.32 km) |
| Porsgrunn to Saint-Brevin-les-Pins | 953.06 mi (1,533.80 km) |
