| Porsgrunn to Senftenberg | 551.38 mi (887.36 km) |
| Porsgrunn to Siegburg | 582.89 mi (938.06 km) |
| Porsgrunn to Siegen | 572.69 mi (921.66 km) |
| Porsgrunn to Sigmaringen | 762.29 mi (1,226.78 km) |
| Porsgrunn to Simbach am Inn | 761.46 mi (1,225.45 km) |
| Porsgrunn to Simmerath | 603.60 mi (971.40 km) |
| Porsgrunn to Sindelfingen | 719.29 mi (1,157.59 km) |
| Porsgrunn to Sinsheim | 682.45 mi (1,098.30 km) |
| Porsgrunn to Sinzheim | 718.07 mi (1,155.62 km) |
| Porsgrunn to Sinzig | 600.07 mi (965.72 km) |
| Porsgrunn to Soest | 525.02 mi (844.93 km) |
| Porsgrunn to Solingen | 558.81 mi (899.32 km) |
| Porsgrunn to Soltau | 423.73 mi (681.92 km) |
| Porsgrunn to Sommerda | 552.33 mi (888.89 km) |
| Porsgrunn to Sondershausen | 537.31 mi (864.72 km) |
