| Porsgrunn to Osecina | 1,100.66 mi (1,771.34 km) |
| Porsgrunn to Padinska Skela | 1,076.59 mi (1,732.60 km) |
| Porsgrunn to Pancevo | 1,085.33 mi (1,746.68 km) |
| Porsgrunn to Paracin | 1,163.84 mi (1,873.03 km) |
| Porsgrunn to Pecinci | 1,071.87 mi (1,725.00 km) |
| Porsgrunn to Petrovac na Mlavi | 1,130.98 mi (1,820.13 km) |
| Porsgrunn to Petrovaradin | 1,047.48 mi (1,685.76 km) |
| Porsgrunn to Pirot | 1,231.26 mi (1,981.52 km) |
| Porsgrunn to Plandiste | 1,071.15 mi (1,723.85 km) |
| Porsgrunn to Pozarevac | 1,111.28 mi (1,788.43 km) |
| Porsgrunn to Pozega | 1,141.71 mi (1,837.40 km) |
| Porsgrunn to Presevo | 1,268.99 mi (2,042.24 km) |
| Porsgrunn to Priboj | 1,150.89 mi (1,852.17 km) |
| Porsgrunn to Prijepolje | 1,155.43 mi (1,859.48 km) |
| Porsgrunn to Prokuplje | 1,207.73 mi (1,943.65 km) |
