| Portici to Giovinazzo | 123.84 mi (199.30 km) |
| Portici to Giugliano in Campania | 10.86 mi (17.47 km) |
| Portici to Giulianova | 134.88 mi (217.07 km) |
| Portici to Giussano | 424.29 mi (682.82 km) |
| Portici to Goito | 357.87 mi (575.93 km) |
| Portici to Gonzaga | 336.48 mi (541.52 km) |
| Portici to Gorgonzola | 409.76 mi (659.45 km) |
| Portici to Gorizia | 355.18 mi (571.61 km) |
| Portici to Gragnano | 12.51 mi (20.14 km) |
| Portici to Grammichele | 249.58 mi (401.67 km) |
| Portici to Granarolo del l'Emilia | 296.58 mi (477.31 km) |
| Portici to Gravina in Puglia | 108.53 mi (174.66 km) |
| Portici to Grezzana | 365.14 mi (587.63 km) |
| Portici to Gricignano d'Aversa | 14.94 mi (24.04 km) |
| Portici to Grosseto | 214.38 mi (345.01 km) |
