| Madrid to Grottaferrata | 856.48 mi (1,378.37 km) |
| Madrid to Grottaglie | 1,108.26 mi (1,783.58 km) |
| Madrid to Grottammare | 921.77 mi (1,483.44 km) |
| Madrid to Grugliasco | 655.60 mi (1,055.09 km) |
| Madrid to Grumo Appula | 1,066.87 mi (1,716.96 km) |
| Madrid to Grumo Nevano | 940.68 mi (1,513.87 km) |
| Madrid to Gualdo Tadino | 869.31 mi (1,399.02 km) |
| Madrid to Guardiagrele | 936.41 mi (1,507.01 km) |
| Madrid to Guastalla | 792.09 mi (1,274.74 km) |
| Madrid to Gubbio | 859.59 mi (1,383.38 km) |
| Madrid to Guspini | 655.50 mi (1,054.93 km) |
| Madrid to Gussago | 784.75 mi (1,262.94 km) |
| Madrid to Iesi | 894.68 mi (1,439.85 km) |
| Madrid to Iesolo | 896.75 mi (1,443.17 km) |
| Madrid to Iglesias | 652.83 mi (1,050.63 km) |
