| Castelo Branco to Mions | 748.70 mi (1,204.92 km) |
| Castelo Branco to Mios | 471.15 mi (758.24 km) |
| Castelo Branco to Miramas | 694.56 mi (1,117.78 km) |
| Castelo Branco to Miribel | 754.04 mi (1,213.50 km) |
| Castelo Branco to Mitry-Mory | 805.11 mi (1,295.70 km) |
| Castelo Branco to Moissac | 530.91 mi (854.42 km) |
| Castelo Branco to Moissy-Cramayel | 786.13 mi (1,265.15 km) |
| Castelo Branco to Molsheim | 953.80 mi (1,535.00 km) |
| Castelo Branco to Mondeville | 736.21 mi (1,184.81 km) |
| Castelo Branco to Monistrol-sur-Loire | 703.25 mi (1,131.77 km) |
| Castelo Branco to Mons-en-Baroeul | 906.59 mi (1,459.01 km) |
| Castelo Branco to Mont-de-Marsan | 456.87 mi (735.26 km) |
| Castelo Branco to Mont-Saint-Aignan | 787.77 mi (1,267.79 km) |
| Castelo Branco to Mont-Saint-Martin | 933.84 mi (1,502.88 km) |
| Castelo Branco to Montargis | 759.54 mi (1,222.37 km) |
