| Castle Rock to Melzo | 5,300.50 mi (8,530.34 km) |
| Castle Rock to Mendicino | 5,850.38 mi (9,415.28 km) |
| Castle Rock to Menfi | 5,816.53 mi (9,360.80 km) |
| Castle Rock to Mentana | 5,584.55 mi (8,987.47 km) |
| Castle Rock to Merano | 5,304.37 mi (8,536.56 km) |
| Castle Rock to Merate | 5,291.56 mi (8,515.94 km) |
| Castle Rock to Mercato San Severino | 5,721.80 mi (9,208.36 km) |
| Castle Rock to Mercogliano | 5,713.85 mi (9,195.56 km) |
| Castle Rock to Mesagne | 5,838.78 mi (9,396.60 km) |
| Castle Rock to Messina | 5,882.39 mi (9,466.80 km) |
| Castle Rock to Mestre | 5,398.49 mi (8,688.02 km) |
| Castle Rock to Mestrino | 5,384.37 mi (8,665.31 km) |
| Castle Rock to Milan | 5,294.12 mi (8,520.06 km) |
| Castle Rock to Milazzo | 5,869.65 mi (9,446.29 km) |
| Castle Rock to Minerbio | 5,414.87 mi (8,714.39 km) |
