| Porsgrunn to Zlate Moravce | 820.83 mi (1,321.00 km) |
| Porsgrunn to Zvolen | 821.55 mi (1,322.16 km) |
| Porsgrunn to Ajdovscina | 930.52 mi (1,497.53 km) |
| Porsgrunn to Ankaran | 950.16 mi (1,529.14 km) |
| Porsgrunn to Apace | 895.19 mi (1,440.67 km) |
| Porsgrunn to Beltinci | 905.11 mi (1,456.63 km) |
| Porsgrunn to Benedikt | 900.92 mi (1,449.89 km) |
| Porsgrunn to Bistrica ob Sotli | 935.21 mi (1,505.07 km) |
| Porsgrunn to Bled | 899.29 mi (1,447.27 km) |
| Porsgrunn to Bohinjska Bistrica | 904.41 mi (1,455.50 km) |
| Porsgrunn to Borovnica | 931.89 mi (1,499.73 km) |
| Porsgrunn to Bovec | 897.01 mi (1,443.59 km) |
| Porsgrunn to Braslovce | 913.20 mi (1,469.66 km) |
| Porsgrunn to Brezice | 944.80 mi (1,520.52 km) |
| Porsgrunn to Brezovica | 925.55 mi (1,489.53 km) |
