| Constanta to Mombris | 998.14 mi (1,606.35 km) |
| Constanta to Monchengladbach | 1,135.34 mi (1,827.16 km) |
| Constanta to Monschau | 1,130.98 mi (1,820.13 km) |
| Constanta to Montabaur | 1,062.19 mi (1,709.43 km) |
| Constanta to Moosburg | 848.38 mi (1,365.33 km) |
| Constanta to Morbach | 1,081.90 mi (1,741.15 km) |
| Constanta to Morfelden-Walldorf | 1,021.74 mi (1,644.34 km) |
| Constanta to Morlenbach | 1,008.00 mi (1,622.22 km) |
| Constanta to Morsbach | 1,075.28 mi (1,730.50 km) |
| Constanta to Mosbach | 986.01 mi (1,586.82 km) |
| Constanta to Mosigkau | 921.56 mi (1,483.11 km) |
| Constanta to Mossingen | 976.37 mi (1,571.31 km) |
| Constanta to Much | 1,089.49 mi (1,753.37 km) |
| Constanta to Mucheln | 921.29 mi (1,482.67 km) |
| Constanta to Muhlacker | 993.33 mi (1,598.60 km) |
