| Porsgrunn to Teolo | 954.60 mi (1,536.29 km) |
| Porsgrunn to Teramo | 1,149.79 mi (1,850.41 km) |
| Porsgrunn to Terlizzi | 1,277.27 mi (2,055.57 km) |
| Porsgrunn to Termini Imerese | 1,470.83 mi (2,367.07 km) |
| Porsgrunn to Termoli | 1,204.10 mi (1,937.81 km) |
| Porsgrunn to Terni | 1,150.60 mi (1,851.72 km) |
| Porsgrunn to Terracina | 1,241.57 mi (1,998.12 km) |
| Porsgrunn to Terralba | 1,340.95 mi (2,158.06 km) |
| Porsgrunn to Terranuova Bracciolini | 1,078.21 mi (1,735.22 km) |
| Porsgrunn to Terrasini Favarotta | 1,456.30 mi (2,343.69 km) |
| Porsgrunn to Terzigno | 1,282.47 mi (2,063.94 km) |
| Porsgrunn to Tezze sul Brenta | 931.58 mi (1,499.23 km) |
| Porsgrunn to Thiene | 929.34 mi (1,495.63 km) |
| Porsgrunn to Tirano | 891.45 mi (1,434.65 km) |
| Porsgrunn to Tivoli | 1,192.30 mi (1,918.82 km) |
