| Porsgrunn to Polzela | 914.07 mi (1,471.05 km) |
| Porsgrunn to Postojna | 940.46 mi (1,513.53 km) |
| Porsgrunn to Prebold | 917.22 mi (1,476.12 km) |
| Porsgrunn to Preddvor | 906.25 mi (1,458.46 km) |
| Porsgrunn to Prevalje | 894.69 mi (1,439.86 km) |
| Porsgrunn to Ptuj | 913.29 mi (1,469.80 km) |
| Porsgrunn to Puconci | 897.65 mi (1,444.62 km) |
| Porsgrunn to Race | 908.91 mi (1,462.75 km) |
| Porsgrunn to Radece | 929.59 mi (1,496.03 km) |
| Porsgrunn to Radenci | 899.96 mi (1,448.34 km) |
| Porsgrunn to Radlje ob Dravi | 893.07 mi (1,437.26 km) |
| Porsgrunn to Radovljica | 901.57 mi (1,450.93 km) |
| Porsgrunn to Ravne na Koroskem | 895.21 mi (1,440.71 km) |
| Porsgrunn to Razkrizje | 911.64 mi (1,467.15 km) |
| Porsgrunn to Recica | 909.61 mi (1,463.87 km) |
