| Porsgrunn to Reichenbach/Vogtland | 596.06 mi (959.27 km) |
| Porsgrunn to Reinbek | 387.93 mi (624.31 km) |
| Porsgrunn to Reinfeld | 366.16 mi (589.27 km) |
| Porsgrunn to Reinheim | 642.74 mi (1,034.39 km) |
| Porsgrunn to Reiskirchen | 589.39 mi (948.53 km) |
| Porsgrunn to Rellingen | 377.66 mi (607.78 km) |
| Porsgrunn to Remagen | 597.93 mi (962.28 km) |
| Porsgrunn to Remscheid | 556.85 mi (896.17 km) |
| Porsgrunn to Rendsburg | 332.73 mi (535.48 km) |
| Porsgrunn to Renningen | 715.76 mi (1,151.91 km) |
| Porsgrunn to Reutlingen | 734.89 mi (1,182.69 km) |
| Porsgrunn to Rhaude | 419.30 mi (674.79 km) |
| Porsgrunn to Rheda-Wiedenbruck | 505.57 mi (813.64 km) |
| Porsgrunn to Rhede | 516.64 mi (831.45 km) |
| Porsgrunn to Rheinau | 725.42 mi (1,167.45 km) |
