| Idanha-a-Nova to Grottaferrata | 1,045.90 mi (1,683.21 km) |
| Idanha-a-Nova to Grottaglie | 1,297.70 mi (2,088.45 km) |
| Idanha-a-Nova to Grottammare | 1,109.96 mi (1,786.30 km) |
| Idanha-a-Nova to Grugliasco | 832.62 mi (1,339.98 km) |
| Idanha-a-Nova to Grumo Appula | 1,256.41 mi (2,021.99 km) |
| Idanha-a-Nova to Grumo Nevano | 1,130.18 mi (1,818.84 km) |
| Idanha-a-Nova to Gualdo Tadino | 1,056.94 mi (1,700.98 km) |
| Idanha-a-Nova to Guardiagrele | 1,125.56 mi (1,811.41 km) |
| Idanha-a-Nova to Guastalla | 973.69 mi (1,567.00 km) |
| Idanha-a-Nova to Gubbio | 1,046.95 mi (1,684.90 km) |
| Idanha-a-Nova to Guspini | 842.48 mi (1,355.83 km) |
| Idanha-a-Nova to Gussago | 962.72 mi (1,549.35 km) |
| Idanha-a-Nova to Iesi | 1,081.80 mi (1,740.99 km) |
| Idanha-a-Nova to Iesolo | 1,077.48 mi (1,734.04 km) |
| Idanha-a-Nova to Iglesias | 839.10 mi (1,350.40 km) |
