| Castel Gandolfo to Teramo | 82.88 mi (133.39 km) |
| Castel Gandolfo to Terlizzi | 206.29 mi (331.99 km) |
| Castel Gandolfo to Termini Imerese | 265.91 mi (427.94 km) |
| Castel Gandolfo to Termoli | 121.21 mi (195.07 km) |
| Castel Gandolfo to Terni | 56.31 mi (90.63 km) |
| Castel Gandolfo to Terracina | 44.54 mi (71.67 km) |
| Castel Gandolfo to Terralba | 252.58 mi (406.49 km) |
| Castel Gandolfo to Terranuova Bracciolini | 135.97 mi (218.83 km) |
| Castel Gandolfo to Terrasini Favarotta | 249.57 mi (401.64 km) |
| Castel Gandolfo to Terzigno | 116.14 mi (186.92 km) |
| Castel Gandolfo to Tezze sul Brenta | 276.26 mi (444.59 km) |
| Castel Gandolfo to Thiene | 279.82 mi (450.33 km) |
| Castel Gandolfo to Tirano | 332.53 mi (535.15 km) |
| Castel Gandolfo to Tivoli | 16.99 mi (27.35 km) |
| Castel Gandolfo to Todi | 72.33 mi (116.41 km) |
