| Horndean to Grottaferrata | 904.15 mi (1,455.09 km) |
| Horndean to Grottaglie | 1,136.72 mi (1,829.37 km) |
| Horndean to Grottammare | 886.63 mi (1,426.90 km) |
| Horndean to Grugliasco | 565.24 mi (909.67 km) |
| Horndean to Grumo Appula | 1,085.98 mi (1,747.71 km) |
| Horndean to Grumo Nevano | 1,003.13 mi (1,614.38 km) |
| Horndean to Gualdo Tadino | 835.54 mi (1,344.68 km) |
| Horndean to Guardiagrele | 937.48 mi (1,508.73 km) |
| Horndean to Guastalla | 679.39 mi (1,093.38 km) |
| Horndean to Gubbio | 822.11 mi (1,323.06 km) |
| Horndean to Guspini | 913.61 mi (1,470.32 km) |
| Horndean to Gussago | 629.55 mi (1,013.16 km) |
| Horndean to Iesi | 838.43 mi (1,349.32 km) |
| Horndean to Iesolo | 728.06 mi (1,171.69 km) |
| Horndean to Iglesias | 924.50 mi (1,487.83 km) |
