| Opelika to Grottaferrata | 5,128.96 mi (8,254.26 km) |
| Opelika to Grottaglie | 5,385.45 mi (8,667.04 km) |
| Opelika to Grottammare | 5,139.91 mi (8,271.89 km) |
| Opelika to Grugliasco | 4,796.90 mi (7,719.86 km) |
| Opelika to Grumo Appula | 5,335.12 mi (8,586.05 km) |
| Opelika to Grumo Nevano | 5,230.21 mi (8,417.21 km) |
| Opelika to Gualdo Tadino | 5,084.22 mi (8,182.25 km) |
| Opelika to Guardiagrele | 5,183.03 mi (8,341.27 km) |
| Opelika to Guastalla | 4,936.09 mi (7,943.87 km) |
| Opelika to Gubbio | 5,070.76 mi (8,160.60 km) |
| Opelika to Guspini | 5,020.05 mi (8,078.99 km) |
| Opelika to Gussago | 4,891.88 mi (7,872.72 km) |
| Opelika to Iesi | 5,094.12 mi (8,198.20 km) |
| Opelika to Iesolo | 5,000.39 mi (8,047.35 km) |
| Opelika to Iglesias | 5,022.47 mi (8,082.88 km) |
