| Key West to Mombris | 4,974.19 mi (8,005.18 km) |
| Key West to Monchengladbach | 4,837.57 mi (7,785.31 km) |
| Key West to Monschau | 4,841.36 mi (7,791.42 km) |
| Key West to Montabaur | 4,910.11 mi (7,902.06 km) |
| Key West to Moosburg | 5,127.21 mi (8,251.45 km) |
| Key West to Morbach | 4,891.57 mi (7,872.22 km) |
| Key West to Morfelden-Walldorf | 4,950.73 mi (7,967.44 km) |
| Key West to Morlenbach | 4,965.28 mi (7,990.84 km) |
| Key West to Morsbach | 4,897.42 mi (7,881.64 km) |
| Key West to Mosbach | 4,987.86 mi (8,027.19 km) |
| Key West to Mosigkau | 5,063.84 mi (8,149.46 km) |
| Key West to Mossingen | 5,003.47 mi (8,052.31 km) |
| Key West to Much | 4,883.20 mi (7,858.75 km) |
| Key West to Mucheln | 5,057.96 mi (8,140.00 km) |
| Key West to Muhlacker | 4,982.81 mi (8,019.05 km) |
