| Porsgrunn to Matulji | 969.17 mi (1,559.73 km) |
| Porsgrunn to Metkovic | 1,160.36 mi (1,867.41 km) |
| Porsgrunn to Nedelisce | 921.82 mi (1,483.52 km) |
| Porsgrunn to Nova Gradiska | 1,010.09 mi (1,625.58 km) |
| Porsgrunn to Novi Marof | 935.68 mi (1,505.82 km) |
| Porsgrunn to Ogulin | 984.13 mi (1,583.80 km) |
| Porsgrunn to Opatija | 971.31 mi (1,563.17 km) |
| Porsgrunn to Osijek | 1,008.67 mi (1,623.30 km) |
| Porsgrunn to Otocac | 1,011.31 mi (1,627.55 km) |
| Porsgrunn to Pazin | 974.79 mi (1,568.77 km) |
| Porsgrunn to Petrinja | 983.66 mi (1,583.04 km) |
| Porsgrunn to Popovaca | 979.13 mi (1,575.76 km) |
| Porsgrunn to Pozega | 1,008.48 mi (1,622.99 km) |
| Porsgrunn to Pula | 999.38 mi (1,608.35 km) |
| Porsgrunn to Rijeka | 972.90 mi (1,565.73 km) |
