| Opera to Gaeta | 361.43 mi (581.67 km) |
| Opera to Gaggiano | 8.94 mi (14.40 km) |
| Opera to Galatina | 579.00 mi (931.82 km) |
| Opera to Galatone | 575.82 mi (926.70 km) |
| Opera to Galbiate | 29.90 mi (48.11 km) |
| Opera to Gallarate | 28.33 mi (45.59 km) |
| Opera to Galliate | 25.99 mi (41.82 km) |
| Opera to Gallipoli | 577.26 mi (929.01 km) |
| Opera to Gambettola | 176.18 mi (283.53 km) |
| Opera to Gambolo | 19.15 mi (30.82 km) |
| Opera to Garbagnate Milanese | 14.91 mi (23.99 km) |
| Opera to Gardone Val Trompia | 51.17 mi (82.35 km) |
| Opera to Garlasco | 19.31 mi (31.08 km) |
| Opera to Gassino Torinese | 69.97 mi (112.61 km) |
| Opera to Gatteo | 178.90 mi (287.91 km) |
