| Kostinbrod to Marghita | 316.17 mi (508.82 km) |
| Kostinbrod to Marginea | 368.06 mi (592.33 km) |
| Kostinbrod to Matca | 298.97 mi (481.15 km) |
| Kostinbrod to Medgidia | 271.35 mi (436.70 km) |
| Kostinbrod to Media | 236.98 mi (381.38 km) |
| Kostinbrod to Miercurea-Ciuc | 275.81 mi (443.88 km) |
| Kostinbrod to Mioveni | 170.97 mi (275.16 km) |
| Kostinbrod to Mizil | 220.22 mi (354.40 km) |
| Kostinbrod to Moinesti | 297.00 mi (477.97 km) |
| Kostinbrod to Moisei | 340.48 mi (547.95 km) |
| Kostinbrod to Moldova Noua | 152.49 mi (245.42 km) |
| Kostinbrod to Moreni | 192.22 mi (309.35 km) |
| Kostinbrod to Motru | 137.83 mi (221.81 km) |
| Kostinbrod to Murfatlar | 276.53 mi (445.03 km) |
| Kostinbrod to Nasaud | 314.02 mi (505.37 km) |
