| Grinon to Grottaferrata | 866.95 mi (1,395.22 km) |
| Grinon to Grottaglie | 1,117.77 mi (1,798.88 km) |
| Grinon to Grottammare | 933.25 mi (1,501.93 km) |
| Grinon to Grugliasco | 669.67 mi (1,077.73 km) |
| Grinon to Grumo Appula | 1,076.72 mi (1,732.82 km) |
| Grinon to Grumo Nevano | 950.35 mi (1,529.45 km) |
| Grinon to Gualdo Tadino | 881.07 mi (1,417.95 km) |
| Grinon to Guardiagrele | 947.22 mi (1,524.41 km) |
| Grinon to Guastalla | 805.43 mi (1,296.22 km) |
| Grinon to Gubbio | 871.47 mi (1,402.50 km) |
| Grinon to Guspini | 663.06 mi (1,067.10 km) |
| Grinon to Gussago | 798.64 mi (1,285.29 km) |
| Grinon to Iesi | 906.64 mi (1,459.10 km) |
| Grinon to Iesolo | 910.20 mi (1,464.82 km) |
| Grinon to Iglesias | 660.05 mi (1,062.25 km) |
