| Clausthal-Zellerfeld to Monchengladbach | 172.94 mi (278.32 km) |
| Clausthal-Zellerfeld to Monschau | 196.46 mi (316.18 km) |
| Clausthal-Zellerfeld to Montabaur | 144.12 mi (231.94 km) |
| Clausthal-Zellerfeld to Moosburg | 241.25 mi (388.25 km) |
| Clausthal-Zellerfeld to Morbach | 196.49 mi (316.22 km) |
| Clausthal-Zellerfeld to Morfelden-Walldorf | 146.22 mi (235.32 km) |
| Clausthal-Zellerfeld to Morlenbach | 167.70 mi (269.88 km) |
| Clausthal-Zellerfeld to Morsbach | 130.31 mi (209.71 km) |
| Clausthal-Zellerfeld to Mosbach | 177.31 mi (285.36 km) |
| Clausthal-Zellerfeld to Mosigkau | 81.07 mi (130.47 km) |
| Clausthal-Zellerfeld to Mossingen | 241.54 mi (388.73 km) |
| Clausthal-Zellerfeld to Much | 140.72 mi (226.47 km) |
| Clausthal-Zellerfeld to Mucheln | 71.94 mi (115.78 km) |
| Clausthal-Zellerfeld to Muhlacker | 207.97 mi (334.70 km) |
| Clausthal-Zellerfeld to Muhldorf | 264.37 mi (425.46 km) |
