| Southampton to Grottaferrata | 917.61 mi (1,476.75 km) |
| Southampton to Grottaglie | 1,151.47 mi (1,853.11 km) |
| Southampton to Grottammare | 901.33 mi (1,450.55 km) |
| Southampton to Grugliasco | 578.05 mi (930.29 km) |
| Southampton to Grumo Appula | 1,100.70 mi (1,771.40 km) |
| Southampton to Grumo Nevano | 1,016.86 mi (1,636.48 km) |
| Southampton to Gualdo Tadino | 849.94 mi (1,367.84 km) |
| Southampton to Guardiagrele | 951.87 mi (1,531.89 km) |
| Southampton to Guastalla | 693.98 mi (1,116.86 km) |
| Southampton to Gubbio | 836.48 mi (1,346.19 km) |
| Southampton to Guspini | 923.17 mi (1,485.70 km) |
| Southampton to Gussago | 644.44 mi (1,037.12 km) |
| Southampton to Iesi | 853.19 mi (1,373.08 km) |
| Southampton to Iesolo | 743.86 mi (1,197.12 km) |
| Southampton to Iglesias | 933.86 mi (1,502.91 km) |
