| Calais to Montilla | 976.70 mi (1,571.85 km) |
| Calais to Montmelo | 649.29 mi (1,044.93 km) |
| Calais to Montornes del Valles | 650.03 mi (1,046.12 km) |
| Calais to Montoro | 944.08 mi (1,519.35 km) |
| Calais to Monzon | 629.45 mi (1,013.00 km) |
| Calais to Mora | 824.38 mi (1,326.72 km) |
| Calais to Moralzarzal | 762.64 mi (1,227.35 km) |
| Calais to Moron de la Frontera | 1,020.69 mi (1,642.64 km) |
| Calais to Mostoles | 783.19 mi (1,260.42 km) |
| Calais to Motril | 1,016.18 mi (1,635.38 km) |
| Calais to Muchamiel | 873.29 mi (1,405.42 km) |
| Calais to Mula | 906.61 mi (1,459.05 km) |
| Calais to Munguia | 569.01 mi (915.73 km) |
| Calais to Murcia | 907.41 mi (1,460.34 km) |
| Calais to Muro del Alcoy | 848.11 mi (1,364.89 km) |
