| Middle River to Massarosa | 4,277.58 mi (6,884.09 km) |
| Middle River to Matelica | 4,414.82 mi (7,104.97 km) |
| Middle River to Matera | 4,665.99 mi (7,509.18 km) |
| Middle River to Matino | 4,757.43 mi (7,656.34 km) |
| Middle River to Mazzarino | 4,686.13 mi (7,541.61 km) |
| Middle River to Meda | 4,168.38 mi (6,708.36 km) |
| Middle River to Medesano | 4,239.62 mi (6,823.01 km) |
| Middle River to Medicina | 4,313.12 mi (6,941.30 km) |
| Middle River to Meldola | 4,342.96 mi (6,989.32 km) |
| Middle River to Melegnano | 4,184.97 mi (6,735.06 km) |
| Middle River to Melendugno | 4,757.08 mi (7,655.78 km) |
| Middle River to Melfi | 4,611.80 mi (7,421.97 km) |
| Middle River to Melilli | 4,732.60 mi (7,616.38 km) |
| Middle River to Melito di Napoli | 4,552.48 mi (7,326.51 km) |
| Middle River to Melito di Porto Salvo | 4,734.72 mi (7,619.79 km) |
