| Heerlen to Manerbio | 426.35 mi (686.14 km) |
| Heerlen to Manfredonia | 794.52 mi (1,278.65 km) |
| Heerlen to Maniago | 448.13 mi (721.19 km) |
| Heerlen to Mantova | 453.57 mi (729.96 km) |
| Heerlen to Maranello | 493.74 mi (794.60 km) |
| Heerlen to Marano di Napoli | 793.42 mi (1,276.88 km) |
| Heerlen to Marano Vicentino | 436.80 mi (702.97 km) |
| Heerlen to Marcianise | 788.00 mi (1,268.17 km) |
| Heerlen to Marcon | 468.81 mi (754.47 km) |
| Heerlen to Mareno di Piave | 454.47 mi (731.40 km) |
| Heerlen to Margherita di Savoia | 816.54 mi (1,314.10 km) |
| Heerlen to Mariano Comense | 387.07 mi (622.93 km) |
| Heerlen to Marigliano | 797.75 mi (1,283.85 km) |
| Heerlen to Marino | 705.32 mi (1,135.10 km) |
| Heerlen to Marostica | 440.10 mi (708.28 km) |
