| Castelo Branco to Montigny-les-Metz | 927.34 mi (1,492.40 km) |
| Castelo Branco to Montivilliers | 770.13 mi (1,239.40 km) |
| Castelo Branco to Montlouis-sur-Loire | 667.97 mi (1,074.99 km) |
| Castelo Branco to Montlucon | 679.59 mi (1,093.69 km) |
| Castelo Branco to Montmagny | 796.44 mi (1,281.75 km) |
| Castelo Branco to Montmorency | 796.64 mi (1,282.08 km) |
| Castelo Branco to Montpellier | 642.00 mi (1,033.19 km) |
| Castelo Branco to Montreuil | 793.55 mi (1,277.10 km) |
| Castelo Branco to Montrouge | 787.61 mi (1,267.54 km) |
| Castelo Branco to Morangis | 782.28 mi (1,258.96 km) |
| Castelo Branco to Morieres-les-Avignon | 697.96 mi (1,123.26 km) |
| Castelo Branco to Morlaix | 631.85 mi (1,016.87 km) |
| Castelo Branco to Morsang-sur-Orge | 780.34 mi (1,255.84 km) |
| Castelo Branco to Mouans-Sartoux | 790.00 mi (1,271.38 km) |
| Castelo Branco to Mougins | 790.76 mi (1,272.61 km) |
