| Porsgrunn to Tonsberg | 28.22 mi (45.41 km) |
| Porsgrunn to Tromsdalen | 776.55 mi (1,249.73 km) |
| Porsgrunn to Tromso | 778.39 mi (1,252.70 km) |
| Porsgrunn to Trondheim | 298.93 mi (481.09 km) |
| Porsgrunn to Tysvaer | 148.22 mi (238.53 km) |
| Porsgrunn to Ulstein | 258.94 mi (416.72 km) |
| Porsgrunn to Vadso | 952.81 mi (1,533.40 km) |
| Porsgrunn to Vennesla | 86.68 mi (139.50 km) |
| Porsgrunn to Verdal | 328.39 mi (528.49 km) |
| Porsgrunn to Vestby | 47.99 mi (77.24 km) |
| Porsgrunn to Volda | 243.01 mi (391.08 km) |
| Porsgrunn to Voss | 158.04 mi (254.34 km) |
| Porsgrunn to Vossevangen | 154.24 mi (248.23 km) |
| Porsgrunn to Aleksandrow Kujawski | 552.49 mi (889.14 km) |
| Porsgrunn to Aleksandrow Lodzki | 627.46 mi (1,009.81 km) |
