| Castagneto Carducci to Masquefa | 463.00 mi (745.12 km) |
| Castagneto Carducci to Matadepera | 450.55 mi (725.09 km) |
| Castagneto Carducci to Mazarron | 734.59 mi (1,182.21 km) |
| Castagneto Carducci to Meco | 738.04 mi (1,187.76 km) |
| Castagneto Carducci to Medina del Campo | 803.00 mi (1,292.31 km) |
| Castagneto Carducci to Medina Sidonia | 988.81 mi (1,591.33 km) |
| Castagneto Carducci to Mejorada del Campo | 744.56 mi (1,198.26 km) |
| Castagneto Carducci to Meliana | 620.48 mi (998.56 km) |
| Castagneto Carducci to Mengibar | 835.71 mi (1,344.95 km) |
| Castagneto Carducci to Merida | 928.53 mi (1,494.32 km) |
| Castagneto Carducci to Miajadas | 908.51 mi (1,462.11 km) |
| Castagneto Carducci to Mieres | 823.42 mi (1,325.17 km) |
| Castagneto Carducci to Miguelturra | 810.26 mi (1,303.98 km) |
| Castagneto Carducci to Mijas | 924.32 mi (1,487.54 km) |
| Castagneto Carducci to Miranda de Ebro | 684.76 mi (1,102.02 km) |
