| Southborough to Marasesti | 1,278.62 mi (2,057.73 km) |
| Southborough to Marghita | 1,025.10 mi (1,649.74 km) |
| Southborough to Marginea | 1,164.35 mi (1,873.84 km) |
| Southborough to Matca | 1,292.61 mi (2,080.25 km) |
| Southborough to Medgidia | 1,376.35 mi (2,215.02 km) |
| Southborough to Media | 1,146.49 mi (1,845.10 km) |
| Southborough to Miercurea-Ciuc | 1,202.61 mi (1,935.42 km) |
| Southborough to Mioveni | 1,210.39 mi (1,947.93 km) |
| Southborough to Mizil | 1,272.92 mi (2,048.56 km) |
| Southborough to Moinesti | 1,229.84 mi (1,979.24 km) |
| Southborough to Moisei | 1,112.30 mi (1,790.07 km) |
| Southborough to Moldova Noua | 1,080.76 mi (1,739.31 km) |
| Southborough to Moreni | 1,239.57 mi (1,994.90 km) |
| Southborough to Motru | 1,132.39 mi (1,822.40 km) |
| Southborough to Murfatlar | 1,385.30 mi (2,229.43 km) |
