| Clayton to Marasesti | 1,392.39 mi (2,240.84 km) |
| Clayton to Marghita | 1,142.02 mi (1,837.90 km) |
| Clayton to Marginea | 1,266.19 mi (2,037.73 km) |
| Clayton to Matca | 1,405.69 mi (2,262.24 km) |
| Clayton to Medgidia | 1,498.44 mi (2,411.51 km) |
| Clayton to Media | 1,267.23 mi (2,039.41 km) |
| Clayton to Miercurea-Ciuc | 1,317.04 mi (2,119.57 km) |
| Clayton to Mioveni | 1,338.29 mi (2,153.76 km) |
| Clayton to Mizil | 1,395.62 mi (2,246.04 km) |
| Clayton to Moinesti | 1,341.57 mi (2,159.06 km) |
| Clayton to Moisei | 1,219.41 mi (1,962.44 km) |
| Clayton to Moldova Noua | 1,221.72 mi (1,966.17 km) |
| Clayton to Moreni | 1,364.99 mi (2,196.73 km) |
| Clayton to Motru | 1,268.09 mi (2,040.79 km) |
| Clayton to Murfatlar | 1,507.44 mi (2,425.99 km) |
