| Bad Honnef am Rhein to Monchengladbach | 51.62 mi (83.08 km) |
| Bad Honnef am Rhein to Monschau | 42.96 mi (69.14 km) |
| Bad Honnef am Rhein to Montabaur | 29.95 mi (48.20 km) |
| Bad Honnef am Rhein to Moosburg | 259.05 mi (416.91 km) |
| Bad Honnef am Rhein to Morbach | 57.44 mi (92.44 km) |
| Bad Honnef am Rhein to Morfelden-Walldorf | 74.61 mi (120.07 km) |
| Bad Honnef am Rhein to Morlenbach | 98.47 mi (158.48 km) |
| Bad Honnef am Rhein to Morsbach | 26.32 mi (42.37 km) |
| Bad Honnef am Rhein to Mosbach | 123.48 mi (198.72 km) |
| Bad Honnef am Rhein to Mosigkau | 231.54 mi (372.64 km) |
| Bad Honnef am Rhein to Mossingen | 175.10 mi (281.79 km) |
| Bad Honnef am Rhein to Much | 20.24 mi (32.57 km) |
| Bad Honnef am Rhein to Mucheln | 204.01 mi (328.32 km) |
| Bad Honnef am Rhein to Muhlacker | 137.42 mi (221.16 km) |
| Bad Honnef am Rhein to Muhldorf | 289.86 mi (466.48 km) |
