| Slough to Grottaferrata | 917.33 mi (1,476.30 km) |
| Slough to Grottaglie | 1,144.44 mi (1,841.81 km) |
| Slough to Grottammare | 894.90 mi (1,440.21 km) |
| Slough to Grugliasco | 581.47 mi (935.78 km) |
| Slough to Grumo Appula | 1,093.89 mi (1,760.45 km) |
| Slough to Grumo Nevano | 1,015.16 mi (1,633.75 km) |
| Slough to Gualdo Tadino | 845.19 mi (1,360.20 km) |
| Slough to Guardiagrele | 946.98 mi (1,524.01 km) |
| Slough to Guastalla | 688.52 mi (1,108.06 km) |
| Slough to Gubbio | 831.87 mi (1,338.77 km) |
| Slough to Guspini | 938.44 mi (1,510.27 km) |
| Slough to Gussago | 637.49 mi (1,025.94 km) |
| Slough to Iesi | 846.48 mi (1,362.27 km) |
| Slough to Iesolo | 731.21 mi (1,176.76 km) |
| Slough to Iglesias | 949.78 mi (1,528.52 km) |
