| Heerlen to Masquefa | 677.78 mi (1,090.78 km) |
| Heerlen to Matadepera | 668.23 mi (1,075.42 km) |
| Heerlen to Mazarron | 985.23 mi (1,585.57 km) |
| Heerlen to Meco | 841.74 mi (1,354.65 km) |
| Heerlen to Medina del Campo | 841.48 mi (1,354.24 km) |
| Heerlen to Medina Sidonia | 1,156.82 mi (1,861.72 km) |
| Heerlen to Mejorada del Campo | 852.77 mi (1,372.40 km) |
| Heerlen to Meliana | 842.24 mi (1,355.45 km) |
| Heerlen to Mengibar | 1,012.72 mi (1,629.82 km) |
| Heerlen to Merida | 1,021.28 mi (1,643.59 km) |
| Heerlen to Miajadas | 999.06 mi (1,607.83 km) |
| Heerlen to Mieres | 762.77 mi (1,227.55 km) |
| Heerlen to Miguelturra | 954.13 mi (1,535.52 km) |
| Heerlen to Mijas | 1,117.55 mi (1,798.53 km) |
| Heerlen to Miranda de Ebro | 705.29 mi (1,135.06 km) |
