| Welwyn Garden City to Grottaferrata | 918.91 mi (1,478.84 km) |
| Welwyn Garden City to Grottaglie | 1,142.49 mi (1,838.66 km) |
| Welwyn Garden City to Grottammare | 893.51 mi (1,437.97 km) |
| Welwyn Garden City to Grugliasco | 585.51 mi (942.29 km) |
| Welwyn Garden City to Grumo Appula | 1,092.09 mi (1,757.54 km) |
| Welwyn Garden City to Grumo Nevano | 1,015.94 mi (1,634.99 km) |
| Welwyn Garden City to Gualdo Tadino | 844.69 mi (1,359.39 km) |
| Welwyn Garden City to Guardiagrele | 946.27 mi (1,522.87 km) |
| Welwyn Garden City to Guastalla | 687.96 mi (1,107.17 km) |
| Welwyn Garden City to Gubbio | 831.46 mi (1,338.10 km) |
| Welwyn Garden City to Guspini | 947.42 mi (1,524.73 km) |
| Welwyn Garden City to Gussago | 636.33 mi (1,024.07 km) |
| Welwyn Garden City to Iesi | 845.01 mi (1,359.91 km) |
| Welwyn Garden City to Iesolo | 727.00 mi (1,169.99 km) |
| Welwyn Garden City to Iglesias | 959.05 mi (1,543.45 km) |
