| Greenford to Grottaferrata | 910.71 mi (1,465.65 km) |
| Greenford to Grottaglie | 1,136.83 mi (1,829.55 km) |
| Greenford to Grottammare | 887.43 mi (1,428.17 km) |
| Greenford to Grugliasco | 575.57 mi (926.29 km) |
| Greenford to Grumo Appula | 1,086.31 mi (1,748.25 km) |
| Greenford to Grumo Nevano | 1,008.31 mi (1,622.72 km) |
| Greenford to Gualdo Tadino | 837.95 mi (1,348.55 km) |
| Greenford to Guardiagrele | 939.69 mi (1,512.29 km) |
| Greenford to Guastalla | 681.25 mi (1,096.36 km) |
| Greenford to Gubbio | 824.66 mi (1,327.16 km) |
| Greenford to Guspini | 934.35 mi (1,503.69 km) |
| Greenford to Gussago | 630.04 mi (1,013.95 km) |
| Greenford to Iesi | 838.97 mi (1,350.20 km) |
| Greenford to Iesolo | 722.98 mi (1,163.53 km) |
| Greenford to Iglesias | 945.80 mi (1,522.12 km) |
