| Grefrath to Luzzi | 950.52 mi (1,529.71 km) |
| Grefrath to Macerata | 646.82 mi (1,040.95 km) |
| Grefrath to Macerata Campania | 803.35 mi (1,292.87 km) |
| Grefrath to Macomer | 773.71 mi (1,245.17 km) |
| Grefrath to Maddaloni | 808.04 mi (1,300.42 km) |
| Grefrath to Magenta | 422.26 mi (679.56 km) |
| Grefrath to Magione | 628.37 mi (1,011.26 km) |
| Grefrath to Maglie | 958.94 mi (1,543.26 km) |
| Grefrath to Magnago | 413.40 mi (665.30 km) |
| Grefrath to Malalbergo | 516.17 mi (830.70 km) |
| Grefrath to Malnate | 399.73 mi (643.30 km) |
| Grefrath to Malo | 455.45 mi (732.98 km) |
| Grefrath to Mandello del Lario | 398.27 mi (640.95 km) |
| Grefrath to Manduria | 928.37 mi (1,494.07 km) |
| Grefrath to Manerbio | 447.56 mi (720.28 km) |
