| Porthcawl to Grottaferrata | 1,021.04 mi (1,643.21 km) |
| Porthcawl to Grottaglie | 1,257.15 mi (2,023.19 km) |
| Porthcawl to Grottammare | 1,006.98 mi (1,620.57 km) |
| Porthcawl to Grugliasco | 680.40 mi (1,094.99 km) |
| Porthcawl to Grumo Appula | 1,206.34 mi (1,941.42 km) |
| Porthcawl to Grumo Nevano | 1,120.81 mi (1,803.77 km) |
| Porthcawl to Gualdo Tadino | 955.15 mi (1,537.16 km) |
| Porthcawl to Guardiagrele | 1,057.05 mi (1,701.15 km) |
| Porthcawl to Guastalla | 799.54 mi (1,286.74 km) |
| Porthcawl to Gubbio | 941.66 mi (1,515.46 km) |
| Porthcawl to Guspini | 1,015.59 mi (1,634.43 km) |
| Porthcawl to Gussago | 750.41 mi (1,207.66 km) |
| Porthcawl to Iesi | 958.94 mi (1,543.27 km) |
| Porthcawl to Iesolo | 850.54 mi (1,368.81 km) |
| Porthcawl to Iglesias | 1,025.60 mi (1,650.55 km) |
