| Rocky River to Mombris | 4,149.08 mi (6,677.30 km) |
| Rocky River to Monchengladbach | 4,006.35 mi (6,447.60 km) |
| Rocky River to Monschau | 4,020.36 mi (6,470.15 km) |
| Rocky River to Montabaur | 4,084.93 mi (6,574.06 km) |
| Rocky River to Moosburg | 4,313.09 mi (6,941.25 km) |
| Rocky River to Morbach | 4,078.38 mi (6,563.52 km) |
| Rocky River to Morfelden-Walldorf | 4,128.96 mi (6,644.93 km) |
| Rocky River to Morlenbach | 4,148.75 mi (6,676.77 km) |
| Rocky River to Morsbach | 4,066.35 mi (6,544.16 km) |
| Rocky River to Mosbach | 4,173.24 mi (6,716.18 km) |
| Rocky River to Mosigkau | 4,201.75 mi (6,762.07 km) |
| Rocky River to Mossingen | 4,203.12 mi (6,764.27 km) |
| Rocky River to Much | 4,052.59 mi (6,522.02 km) |
| Rocky River to Mucheln | 4,204.86 mi (6,767.07 km) |
| Rocky River to Muhlacker | 4,175.38 mi (6,719.63 km) |
