| Romanshorn to Mechernich | 242.90 mi (390.90 km) |
| Romanshorn to Meckenbeuren | 13.46 mi (21.65 km) |
| Romanshorn to Meckenheim | 237.02 mi (381.44 km) |
| Romanshorn to Meerane | 266.96 mi (429.62 km) |
| Romanshorn to Meerbusch | 282.94 mi (455.36 km) |
| Romanshorn to Meine | 337.08 mi (542.49 km) |
| Romanshorn to Meinerzhagen | 257.45 mi (414.32 km) |
| Romanshorn to Meiningen | 211.85 mi (340.94 km) |
| Romanshorn to Meissen | 310.48 mi (499.66 km) |
| Romanshorn to Meitingen | 95.62 mi (153.88 km) |
| Romanshorn to Melle | 323.83 mi (521.15 km) |
| Romanshorn to Melsungen | 246.80 mi (397.19 km) |
| Romanshorn to Memmelsdorf | 179.13 mi (288.28 km) |
| Romanshorn to Memmingen | 48.23 mi (77.61 km) |
| Romanshorn to Mendig | 215.81 mi (347.31 km) |
