| Barreiro to Grottaferrata | 1,163.57 mi (1,872.58 km) |
| Barreiro to Grottaglie | 1,411.33 mi (2,271.32 km) |
| Barreiro to Grottammare | 1,231.34 mi (1,981.65 km) |
| Barreiro to Grugliasco | 961.32 mi (1,547.09 km) |
| Barreiro to Grumo Appula | 1,371.52 mi (2,207.25 km) |
| Barreiro to Grumo Nevano | 1,244.72 mi (2,003.18 km) |
| Barreiro to Gualdo Tadino | 1,179.26 mi (1,897.83 km) |
| Barreiro to Guardiagrele | 1,244.49 mi (2,002.81 km) |
| Barreiro to Guastalla | 1,100.82 mi (1,771.60 km) |
| Barreiro to Gubbio | 1,169.65 mi (1,882.38 km) |
| Barreiro to Guspini | 949.42 mi (1,527.95 km) |
| Barreiro to Gussago | 1,091.24 mi (1,756.17 km) |
| Barreiro to Iesi | 1,204.81 mi (1,938.95 km) |
| Barreiro to Iesolo | 1,205.05 mi (1,939.34 km) |
| Barreiro to Iglesias | 944.73 mi (1,520.39 km) |
