| Boadilla del Monte to Grottaferrata | 865.47 mi (1,392.83 km) |
| Boadilla del Monte to Grottaglie | 1,117.31 mi (1,798.14 km) |
| Boadilla del Monte to Grottammare | 930.61 mi (1,497.68 km) |
| Boadilla del Monte to Grugliasco | 663.56 mi (1,067.90 km) |
| Boadilla del Monte to Grumo Appula | 1,075.90 mi (1,731.49 km) |
| Boadilla del Monte to Grumo Nevano | 949.72 mi (1,528.42 km) |
| Boadilla del Monte to Gualdo Tadino | 878.10 mi (1,413.17 km) |
| Boadilla del Monte to Guardiagrele | 945.36 mi (1,521.41 km) |
| Boadilla del Monte to Guastalla | 800.40 mi (1,288.12 km) |
| Boadilla del Monte to Gubbio | 868.36 mi (1,397.49 km) |
| Boadilla del Monte to Guspini | 664.52 mi (1,069.44 km) |
| Boadilla del Monte to Gussago | 792.81 mi (1,275.90 km) |
| Boadilla del Monte to Iesi | 903.43 mi (1,453.93 km) |
| Boadilla del Monte to Iesolo | 905.01 mi (1,456.47 km) |
| Boadilla del Monte to Iglesias | 661.82 mi (1,065.10 km) |
