| Portici to Gaeta | 48.81 mi (78.55 km) |
| Portici to Gaggiano | 414.52 mi (667.11 km) |
| Portici to Galatina | 206.00 mi (331.52 km) |
| Portici to Galatone | 201.16 mi (323.73 km) |
| Portici to Galbiate | 424.71 mi (683.50 km) |
| Portici to Gallarate | 435.77 mi (701.31 km) |
| Portici to Galliate | 429.52 mi (691.25 km) |
| Portici to Gallipoli | 199.09 mi (320.40 km) |
| Portici to Gambettola | 249.71 mi (401.87 km) |
| Portici to Gambolo | 412.77 mi (664.29 km) |
| Portici to Garbagnate Milanese | 421.97 mi (679.10 km) |
| Portici to Gardone Val Trompia | 395.73 mi (636.86 km) |
| Portici to Garlasco | 408.10 mi (656.78 km) |
| Portici to Gassino Torinese | 443.68 mi (714.04 km) |
| Portici to Gatteo | 247.62 mi (398.51 km) |
