| Piqua to Mengen | 4,380.78 mi (7,050.18 km) |
| Piqua to Meppen | 4,143.53 mi (6,668.37 km) |
| Piqua to Merchweiler | 4,245.64 mi (6,832.70 km) |
| Piqua to Mering | 4,437.77 mi (7,141.90 km) |
| Piqua to Merseburg | 4,362.85 mi (7,021.32 km) |
| Piqua to Merzenich | 4,175.82 mi (6,720.33 km) |
| Piqua to Merzig | 4,225.24 mi (6,799.86 km) |
| Piqua to Meschede | 4,225.04 mi (6,799.55 km) |
| Piqua to Messkirch | 4,374.24 mi (7,039.67 km) |
| Piqua to Messstetten | 4,361.59 mi (7,019.30 km) |
| Piqua to Mettingen | 4,173.94 mi (6,717.31 km) |
| Piqua to Mettlach | 4,223.07 mi (6,796.37 km) |
| Piqua to Mettmann | 4,178.62 mi (6,724.84 km) |
| Piqua to Metzingen | 4,361.55 mi (7,019.23 km) |
| Piqua to Meuselwitz | 4,385.23 mi (7,057.34 km) |
