| Sluis to Masquefa | 681.53 mi (1,096.81 km) |
| Sluis to Matadepera | 673.62 mi (1,084.09 km) |
| Sluis to Mazarron | 974.70 mi (1,568.63 km) |
| Sluis to Meco | 809.22 mi (1,302.31 km) |
| Sluis to Medina del Campo | 795.85 mi (1,280.80 km) |
| Sluis to Medina Sidonia | 1,123.11 mi (1,807.47 km) |
| Sluis to Mejorada del Campo | 820.48 mi (1,320.44 km) |
| Sluis to Meliana | 833.62 mi (1,341.59 km) |
| Sluis to Mengibar | 986.08 mi (1,586.95 km) |
| Sluis to Merida | 977.69 mi (1,573.43 km) |
| Sluis to Miajadas | 955.93 mi (1,538.43 km) |
| Sluis to Mieres | 702.01 mi (1,129.78 km) |
| Sluis to Miguelturra | 923.52 mi (1,486.27 km) |
| Sluis to Mijas | 1,090.14 mi (1,754.42 km) |
| Sluis to Miranda de Ebro | 665.60 mi (1,071.18 km) |
