| Castel Gandolfo to Luzzi | 247.91 mi (398.97 km) |
| Castel Gandolfo to Macerata | 114.82 mi (184.79 km) |
| Castel Gandolfo to Macerata Campania | 95.97 mi (154.46 km) |
| Castel Gandolfo to Macomer | 226.12 mi (363.91 km) |
| Castel Gandolfo to Maddaloni | 102.40 mi (164.79 km) |
| Castel Gandolfo to Magenta | 318.52 mi (512.61 km) |
| Castel Gandolfo to Magione | 99.64 mi (160.36 km) |
| Castel Gandolfo to Maglie | 307.42 mi (494.75 km) |
| Castel Gandolfo to Magnago | 327.22 mi (526.61 km) |
| Castel Gandolfo to Malalbergo | 212.77 mi (342.43 km) |
| Castel Gandolfo to Malnate | 337.21 mi (542.69 km) |
| Castel Gandolfo to Malo | 277.32 mi (446.31 km) |
| Castel Gandolfo to Mandello del Lario | 332.55 mi (535.19 km) |
| Castel Gandolfo to Manduria | 275.60 mi (443.54 km) |
| Castel Gandolfo to Manerbio | 280.06 mi (450.72 km) |
