| Carlsbad to Montevarchi | 6,236.44 mi (10,036.59 km) |
| Carlsbad to Monticello Conte Otto | 6,128.38 mi (9,862.67 km) |
| Carlsbad to Montichiari | 6,100.00 mi (9,817.00 km) |
| Carlsbad to Montignoso | 6,164.96 mi (9,921.54 km) |
| Carlsbad to Montopoli in Val d'Arno | 6,202.33 mi (9,981.68 km) |
| Carlsbad to Monza | 6,055.21 mi (9,744.91 km) |
| Carlsbad to Morbegno | 6,036.56 mi (9,714.90 km) |
| Carlsbad to Mori | 6,096.37 mi (9,811.16 km) |
| Carlsbad to Morlupo | 6,340.02 mi (10,203.28 km) |
| Carlsbad to Morrovalle | 6,312.61 mi (10,159.17 km) |
| Carlsbad to Mortara | 6,055.04 mi (9,744.65 km) |
| Carlsbad to Mosciano Sant'Angelo | 6,352.53 mi (10,223.41 km) |
| Carlsbad to Motta di Livenza | 6,150.95 mi (9,899.01 km) |
| Carlsbad to Motta Sant'Anastasia | 6,670.96 mi (10,735.87 km) |
| Carlsbad to Mottola | 6,567.83 mi (10,569.90 km) |