| Heerlen to Montilla | 1,056.18 mi (1,699.76 km) |
| Heerlen to Montmelo | 668.57 mi (1,075.96 km) |
| Heerlen to Montornes del Valles | 669.04 mi (1,076.72 km) |
| Heerlen to Montoro | 1,023.29 mi (1,646.82 km) |
| Heerlen to Monzon | 678.16 mi (1,091.39 km) |
| Heerlen to Mora | 905.93 mi (1,457.95 km) |
| Heerlen to Moralzarzal | 851.27 mi (1,369.98 km) |
| Heerlen to Moron de la Frontera | 1,104.79 mi (1,777.99 km) |
| Heerlen to Mostoles | 868.95 mi (1,398.45 km) |
| Heerlen to Motril | 1,083.22 mi (1,743.27 km) |
| Heerlen to Muchamiel | 916.82 mi (1,475.49 km) |
| Heerlen to Mula | 959.55 mi (1,544.25 km) |
| Heerlen to Munguia | 664.58 mi (1,069.53 km) |
| Heerlen to Murcia | 956.63 mi (1,539.55 km) |
| Heerlen to Muro del Alcoy | 892.63 mi (1,436.55 km) |
