| Gretna to Giovinazzo | 5,659.64 mi (9,108.31 km) |
| Gretna to Giugliano in Campania | 5,560.09 mi (8,948.11 km) |
| Gretna to Giulianova | 5,483.90 mi (8,825.49 km) |
| Gretna to Giussano | 5,179.73 mi (8,335.98 km) |
| Gretna to Goito | 5,256.34 mi (8,459.27 km) |
| Gretna to Gonzaga | 5,272.72 mi (8,485.63 km) |
| Gretna to Gorgonzola | 5,192.93 mi (8,357.22 km) |
| Gretna to Gorizia | 5,357.19 mi (8,621.57 km) |
| Gretna to Gragnano | 5,582.90 mi (8,984.80 km) |
| Gretna to Grammichele | 5,716.07 mi (9,199.12 km) |
| Gretna to Granarolo del l'Emilia | 5,313.31 mi (8,550.95 km) |
| Gretna to Gravina in Puglia | 5,662.48 mi (9,112.88 km) |
| Gretna to Grezzana | 5,262.37 mi (8,468.97 km) |
| Gretna to Gricignano d'Aversa | 5,557.08 mi (8,943.26 km) |
| Gretna to Grosseto | 5,358.49 mi (8,623.66 km) |
