| Middelharnis to Masquefa | 716.63 mi (1,153.31 km) |
| Middelharnis to Matadepera | 708.30 mi (1,139.91 km) |
| Middelharnis to Mazarron | 1,013.50 mi (1,631.07 km) |
| Middelharnis to Meco | 851.65 mi (1,370.60 km) |
| Middelharnis to Medina del Campo | 839.92 mi (1,351.72 km) |
| Middelharnis to Medina Sidonia | 1,165.97 mi (1,876.44 km) |
| Middelharnis to Mejorada del Campo | 862.89 mi (1,388.70 km) |
| Middelharnis to Meliana | 871.84 mi (1,403.09 km) |
| Middelharnis to Mengibar | 1,027.80 mi (1,654.09 km) |
| Middelharnis to Merida | 1,021.66 mi (1,644.20 km) |
| Middelharnis to Miajadas | 999.85 mi (1,609.10 km) |
| Middelharnis to Mieres | 747.20 mi (1,202.51 km) |
| Middelharnis to Miguelturra | 965.79 mi (1,554.30 km) |
| Middelharnis to Mijas | 1,132.07 mi (1,821.88 km) |
| Middelharnis to Miranda de Ebro | 708.83 mi (1,140.76 km) |
