| Castleton to Grottaferrata | 1,064.17 mi (1,712.61 km) |
| Castleton to Grottaglie | 1,282.42 mi (2,063.85 km) |
| Castleton to Grottammare | 1,034.80 mi (1,665.34 km) |
| Castleton to Grugliasco | 733.14 mi (1,179.87 km) |
| Castleton to Grumo Appula | 1,232.35 mi (1,983.28 km) |
| Castleton to Grumo Nevano | 1,160.15 mi (1,867.09 km) |
| Castleton to Gualdo Tadino | 987.42 mi (1,589.10 km) |
| Castleton to Guardiagrele | 1,088.53 mi (1,751.81 km) |
| Castleton to Guastalla | 830.95 mi (1,337.28 km) |
| Castleton to Gubbio | 974.34 mi (1,568.04 km) |
| Castleton to Guspini | 1,095.80 mi (1,763.52 km) |
| Castleton to Gussago | 778.60 mi (1,253.03 km) |
| Castleton to Iesi | 986.27 mi (1,587.25 km) |
| Castleton to Iesolo | 863.61 mi (1,389.84 km) |
| Castleton to Iglesias | 1,107.34 mi (1,782.09 km) |
