| Southborough to Moncalieri | 545.70 mi (878.21 km) |
| Southborough to Mondolfo | 786.49 mi (1,265.73 km) |
| Southborough to Mondovi | 584.32 mi (940.37 km) |
| Southborough to Monesiglio | 588.01 mi (946.32 km) |
| Southborough to Monfalcone | 710.07 mi (1,142.75 km) |
| Southborough to Monopoli | 1,074.59 mi (1,729.39 km) |
| Southborough to Monreale | 1,104.02 mi (1,776.75 km) |
| Southborough to Monselice | 667.65 mi (1,074.47 km) |
| Southborough to Monserrato | 928.06 mi (1,493.57 km) |
| Southborough to Monsummano | 703.22 mi (1,131.72 km) |
| Southborough to Montagnana | 657.41 mi (1,057.99 km) |
| Southborough to Montale | 706.25 mi (1,136.61 km) |
| Southborough to Montalto di Castro | 809.58 mi (1,302.89 km) |
| Southborough to Montalto Uffugo | 1,116.31 mi (1,796.53 km) |
| Southborough to Monte Compatri | 874.90 mi (1,408.01 km) |
