| Sinaia to Masquefa | 1,215.66 mi (1,956.42 km) |
| Sinaia to Matadepera | 1,203.04 mi (1,936.10 km) |
| Sinaia to Mazarron | 1,481.74 mi (2,384.63 km) |
| Sinaia to Meco | 1,488.91 mi (2,396.16 km) |
| Sinaia to Medina del Campo | 1,547.17 mi (2,489.92 km) |
| Sinaia to Medina Sidonia | 1,740.61 mi (2,801.24 km) |
| Sinaia to Mejorada del Campo | 1,495.99 mi (2,407.56 km) |
| Sinaia to Meliana | 1,373.75 mi (2,210.84 km) |
| Sinaia to Mengibar | 1,588.70 mi (2,556.77 km) |
| Sinaia to Merida | 1,681.44 mi (2,706.02 km) |
| Sinaia to Miajadas | 1,661.09 mi (2,673.27 km) |
| Sinaia to Mieres | 1,546.09 mi (2,488.20 km) |
| Sinaia to Miguelturra | 1,564.14 mi (2,517.25 km) |
| Sinaia to Mijas | 1,674.56 mi (2,694.94 km) |
| Sinaia to Miranda de Ebro | 1,419.74 mi (2,284.85 km) |
