| Constanta to Miedzychod | 823.45 mi (1,325.21 km) |
| Constanta to Miedzyrzec Podlaski | 603.36 mi (971.02 km) |
| Constanta to Miedzyrzecz | 826.41 mi (1,329.98 km) |
| Constanta to Mielec | 540.53 mi (869.90 km) |
| Constanta to Mikolow | 616.26 mi (991.77 km) |
| Constanta to Milanowek | 660.41 mi (1,062.83 km) |
| Constanta to Milicz | 730.57 mi (1,175.74 km) |
| Constanta to Minsk Mazowiecki | 641.81 mi (1,032.89 km) |
| Constanta to Mlawa | 723.38 mi (1,164.17 km) |
| Constanta to Mogilno | 762.33 mi (1,226.86 km) |
| Constanta to Monki | 690.17 mi (1,110.72 km) |
| Constanta to Morag | 779.13 mi (1,253.89 km) |
| Constanta to Mosina | 776.80 mi (1,250.14 km) |
| Constanta to Mragowo | 747.13 mi (1,202.39 km) |
| Constanta to Murowana Goslina | 786.25 mi (1,265.35 km) |
