| Niel to Masquefa | 674.89 mi (1,086.13 km) |
| Niel to Matadepera | 666.36 mi (1,072.40 km) |
| Niel to Mazarron | 974.07 mi (1,567.61 km) |
| Niel to Meco | 816.62 mi (1,314.22 km) |
| Niel to Medina del Campo | 808.33 mi (1,300.89 km) |
| Niel to Medina Sidonia | 1,131.47 mi (1,820.93 km) |
| Niel to Mejorada del Campo | 827.82 mi (1,332.24 km) |
| Niel to Meliana | 832.00 mi (1,338.98 km) |
| Niel to Mengibar | 991.56 mi (1,595.76 km) |
| Niel to Merida | 989.68 mi (1,592.74 km) |
| Niel to Miajadas | 967.71 mi (1,557.39 km) |
| Niel to Mieres | 720.32 mi (1,159.24 km) |
| Niel to Miguelturra | 930.41 mi (1,497.35 km) |
| Niel to Mijas | 1,096.06 mi (1,763.93 km) |
| Niel to Miranda de Ebro | 675.42 mi (1,086.98 km) |
