| Gretna to Grottaferrata | 5,461.87 mi (8,790.03 km) |
| Gretna to Grottaglie | 5,717.77 mi (9,201.87 km) |
| Gretna to Grottammare | 5,471.70 mi (8,805.84 km) |
| Gretna to Grugliasco | 5,128.97 mi (8,254.27 km) |
| Gretna to Grumo Appula | 5,667.37 mi (9,120.75 km) |
| Gretna to Grumo Nevano | 5,563.20 mi (8,953.11 km) |
| Gretna to Gualdo Tadino | 5,416.16 mi (8,716.46 km) |
| Gretna to Guardiagrele | 5,515.25 mi (8,875.94 km) |
| Gretna to Guastalla | 5,267.40 mi (8,477.06 km) |
| Gretna to Gubbio | 5,402.68 mi (8,694.78 km) |
| Gretna to Guspini | 5,354.69 mi (8,617.53 km) |
| Gretna to Gussago | 5,222.79 mi (8,405.27 km) |
| Gretna to Iesi | 5,425.71 mi (8,731.84 km) |
| Gretna to Iesolo | 5,330.52 mi (8,578.65 km) |
| Gretna to Iglesias | 5,357.17 mi (8,621.53 km) |
