| Rhondda to Marasesti | 1,439.50 mi (2,316.65 km) |
| Rhondda to Marghita | 1,186.08 mi (1,908.82 km) |
| Rhondda to Marginea | 1,323.47 mi (2,129.91 km) |
| Rhondda to Matca | 1,453.43 mi (2,339.07 km) |
| Rhondda to Medgidia | 1,537.96 mi (2,475.11 km) |
| Rhondda to Media | 1,307.91 mi (2,104.88 km) |
| Rhondda to Miercurea-Ciuc | 1,363.51 mi (2,194.36 km) |
| Rhondda to Mioveni | 1,372.20 mi (2,208.34 km) |
| Rhondda to Mizil | 1,434.53 mi (2,308.65 km) |
| Rhondda to Moinesti | 1,390.46 mi (2,237.73 km) |
| Rhondda to Moisei | 1,272.17 mi (2,047.36 km) |
| Rhondda to Moldova Noua | 1,242.39 mi (1,999.44 km) |
| Rhondda to Moreni | 1,401.30 mi (2,255.18 km) |
| Rhondda to Motru | 1,294.22 mi (2,082.84 km) |
| Rhondda to Murfatlar | 1,546.92 mi (2,489.54 km) |
