| Trecastagni to Gaeta | 261.56 mi (420.95 km) |
| Trecastagni to Gaggiano | 622.05 mi (1,001.09 km) |
| Trecastagni to Galatina | 241.91 mi (389.32 km) |
| Trecastagni to Galatone | 237.42 mi (382.09 km) |
| Trecastagni to Galbiate | 636.87 mi (1,024.94 km) |
| Trecastagni to Gallarate | 643.54 mi (1,035.67 km) |
| Trecastagni to Galliate | 635.41 mi (1,022.59 km) |
| Trecastagni to Gallipoli | 229.97 mi (370.10 km) |
| Trecastagni to Gambettola | 471.45 mi (758.73 km) |
| Trecastagni to Gambolo | 618.05 mi (994.65 km) |
| Trecastagni to Garbagnate Milanese | 630.97 mi (1,015.45 km) |
| Trecastagni to Gardone Val Trompia | 611.77 mi (984.54 km) |
| Trecastagni to Garlasco | 613.28 mi (986.97 km) |
| Trecastagni to Gassino Torinese | 640.44 mi (1,030.68 km) |
| Trecastagni to Gatteo | 469.57 mi (755.70 km) |
