| Grangemouth to Grottaferrata | 1,226.24 mi (1,973.44 km) |
| Grangemouth to Grottaglie | 1,433.98 mi (2,307.76 km) |
| Grangemouth to Grottammare | 1,189.74 mi (1,914.70 km) |
| Grangemouth to Grugliasco | 901.78 mi (1,451.28 km) |
| Grangemouth to Grumo Appula | 1,384.68 mi (2,228.42 km) |
| Grangemouth to Grumo Nevano | 1,319.83 mi (2,124.06 km) |
| Grangemouth to Gualdo Tadino | 1,145.06 mi (1,842.79 km) |
| Grangemouth to Guardiagrele | 1,244.87 mi (2,003.43 km) |
| Grangemouth to Guastalla | 989.89 mi (1,593.08 km) |
| Grangemouth to Gubbio | 1,132.30 mi (1,822.26 km) |
| Grangemouth to Guspini | 1,270.42 mi (2,044.54 km) |
| Grangemouth to Gussago | 936.75 mi (1,507.55 km) |
| Grangemouth to Iesi | 1,141.44 mi (1,836.98 km) |
| Grangemouth to Iesolo | 1,012.62 mi (1,629.65 km) |
| Grangemouth to Iglesias | 1,282.28 mi (2,063.63 km) |
