| Grefrath to Manfredonia | 809.07 mi (1,302.06 km) |
| Grefrath to Maniago | 460.02 mi (740.32 km) |
| Grefrath to Mantova | 473.33 mi (761.75 km) |
| Grefrath to Maranello | 514.37 mi (827.80 km) |
| Grefrath to Marano di Napoli | 811.95 mi (1,306.71 km) |
| Grefrath to Marano Vicentino | 453.59 mi (729.98 km) |
| Grefrath to Marcianise | 806.18 mi (1,297.42 km) |
| Grefrath to Marcon | 483.57 mi (778.22 km) |
| Grefrath to Mareno di Piave | 468.32 mi (753.69 km) |
| Grefrath to Margherita di Savoia | 831.07 mi (1,337.48 km) |
| Grefrath to Mariano Comense | 410.50 mi (660.64 km) |
| Grefrath to Marigliano | 815.78 mi (1,312.87 km) |
| Grefrath to Marino | 725.65 mi (1,167.82 km) |
| Grefrath to Marostica | 456.14 mi (734.09 km) |
| Grefrath to Marsala | 981.45 mi (1,579.50 km) |
