| Opelika to Giovinazzo | 5,327.49 mi (8,573.77 km) |
| Opelika to Giugliano in Campania | 5,227.08 mi (8,412.17 km) |
| Opelika to Giulianova | 5,151.97 mi (8,291.30 km) |
| Opelika to Giussano | 4,848.62 mi (7,803.10 km) |
| Opelika to Goito | 4,925.30 mi (7,926.51 km) |
| Opelika to Gonzaga | 4,941.49 mi (7,952.55 km) |
| Opelika to Gorgonzola | 4,861.74 mi (7,824.21 km) |
| Opelika to Gorizia | 5,027.79 mi (8,091.45 km) |
| Opelika to Gragnano | 5,249.83 mi (8,448.79 km) |
| Opelika to Grammichele | 5,381.56 mi (8,660.78 km) |
| Opelika to Granarolo del l'Emilia | 4,981.95 mi (8,017.67 km) |
| Opelika to Gravina in Puglia | 5,330.02 mi (8,577.84 km) |
| Opelika to Grezzana | 4,931.67 mi (7,936.76 km) |
| Opelika to Gricignano d'Aversa | 5,224.10 mi (8,407.38 km) |
| Opelika to Grosseto | 5,025.77 mi (8,088.19 km) |
