| Castelo Branco to Manilva | 266.89 mi (429.51 km) |
| Castelo Branco to Manises | 375.66 mi (604.57 km) |
| Castelo Branco to Manlleu | 532.33 mi (856.71 km) |
| Castelo Branco to Manresa | 505.38 mi (813.33 km) |
| Castelo Branco to Manzanares | 227.47 mi (366.07 km) |
| Castelo Branco to Manzanares el Real | 201.87 mi (324.87 km) |
| Castelo Branco to Maracena | 276.34 mi (444.73 km) |
| Castelo Branco to Marbella | 268.66 mi (432.36 km) |
| Castelo Branco to Marchena | 205.18 mi (330.21 km) |
| Castelo Branco to Marin | 188.66 mi (303.63 km) |
| Castelo Branco to Marratxi | 544.64 mi (876.51 km) |
| Castelo Branco to Martorell | 507.20 mi (816.26 km) |
| Castelo Branco to Martos | 239.31 mi (385.13 km) |
| Castelo Branco to Masamagrell | 381.47 mi (613.92 km) |
| Castelo Branco to Masanasa | 378.93 mi (609.82 km) |
