| Llantwit Major to Grottaferrata | 1,010.53 mi (1,626.29 km) |
| Llantwit Major to Grottaglie | 1,246.58 mi (2,006.18 km) |
| Llantwit Major to Grottammare | 996.41 mi (1,603.56 km) |
| Llantwit Major to Grugliasco | 669.92 mi (1,078.13 km) |
| Llantwit Major to Grumo Appula | 1,195.77 mi (1,924.41 km) |
| Llantwit Major to Grumo Nevano | 1,110.28 mi (1,786.82 km) |
| Llantwit Major to Gualdo Tadino | 944.58 mi (1,520.15 km) |
| Llantwit Major to Guardiagrele | 1,046.48 mi (1,684.15 km) |
| Llantwit Major to Guastalla | 788.97 mi (1,269.73 km) |
| Llantwit Major to Gubbio | 931.10 mi (1,498.45 km) |
| Llantwit Major to Guspini | 1,005.71 mi (1,618.53 km) |
| Llantwit Major to Gussago | 739.84 mi (1,190.66 km) |
| Llantwit Major to Iesi | 948.37 mi (1,526.26 km) |
| Llantwit Major to Iesolo | 840.03 mi (1,351.90 km) |
| Llantwit Major to Iglesias | 1,015.78 mi (1,634.73 km) |
