| Colonia to Grottaferrata | 4,311.12 mi (6,938.08 km) |
| Colonia to Grottaglie | 4,566.54 mi (7,349.14 km) |
| Colonia to Grottammare | 4,320.29 mi (6,952.84 km) |
| Colonia to Grugliasco | 3,977.65 mi (6,401.41 km) |
| Colonia to Grumo Appula | 4,516.10 mi (7,267.96 km) |
| Colonia to Grumo Nevano | 4,412.54 mi (7,101.30 km) |
| Colonia to Gualdo Tadino | 4,264.79 mi (6,863.52 km) |
| Colonia to Guardiagrele | 4,363.99 mi (7,023.16 km) |
| Colonia to Guastalla | 4,115.97 mi (6,624.02 km) |
| Colonia to Gubbio | 4,251.31 mi (6,841.83 km) |
| Colonia to Guspini | 4,208.97 mi (6,773.69 km) |
| Colonia to Gussago | 4,071.43 mi (6,552.33 km) |
| Colonia to Iesi | 4,274.29 mi (6,878.80 km) |
| Colonia to Iesolo | 4,179.47 mi (6,726.21 km) |
| Colonia to Iglesias | 4,211.96 mi (6,778.49 km) |
