| Romanshorn to Mombris | 173.17 mi (278.69 km) |
| Romanshorn to Monchengladbach | 283.53 mi (456.29 km) |
| Romanshorn to Monschau | 250.07 mi (402.45 km) |
| Romanshorn to Montabaur | 210.33 mi (338.50 km) |
| Romanshorn to Moosburg | 134.45 mi (216.38 km) |
| Romanshorn to Morbach | 186.18 mi (299.64 km) |
| Romanshorn to Morfelden-Walldorf | 171.98 mi (276.78 km) |
| Romanshorn to Morlenbach | 143.46 mi (230.88 km) |
| Romanshorn to Morsbach | 239.91 mi (386.10 km) |
| Romanshorn to Mosbach | 123.96 mi (199.49 km) |
| Romanshorn to Mosigkau | 321.75 mi (517.80 km) |
| Romanshorn to Mossingen | 59.86 mi (96.33 km) |
| Romanshorn to Much | 247.90 mi (398.96 km) |
| Romanshorn to Mucheln | 280.51 mi (451.43 km) |
| Romanshorn to Muhlacker | 98.71 mi (158.85 km) |
