| Castle Rock to Marasesti | 5,842.66 mi (9,402.85 km) |
| Castle Rock to Marghita | 5,622.06 mi (9,047.83 km) |
| Castle Rock to Marginea | 5,695.49 mi (9,166.01 km) |
| Castle Rock to Matca | 5,852.75 mi (9,419.08 km) |
| Castle Rock to Medgidia | 5,963.84 mi (9,597.88 km) |
| Castle Rock to Media | 5,746.09 mi (9,247.43 km) |
| Castle Rock to Miercurea-Ciuc | 5,775.86 mi (9,295.35 km) |
| Castle Rock to Mioveni | 5,829.18 mi (9,381.15 km) |
| Castle Rock to Mizil | 5,870.02 mi (9,446.89 km) |
| Castle Rock to Moinesti | 5,790.79 mi (9,319.38 km) |
| Castle Rock to Moisei | 5,668.45 mi (9,122.48 km) |
| Castle Rock to Moldova Noua | 5,744.09 mi (9,244.22 km) |
| Castle Rock to Moreni | 5,848.30 mi (9,411.93 km) |
| Castle Rock to Motru | 5,779.20 mi (9,300.72 km) |
| Castle Rock to Murfatlar | 5,972.32 mi (9,611.53 km) |
