| Potters Bar to Mombris | 422.53 mi (680.00 km) |
| Potters Bar to Monchengladbach | 286.87 mi (461.66 km) |
| Potters Bar to Monschau | 289.97 mi (466.66 km) |
| Potters Bar to Montabaur | 358.26 mi (576.57 km) |
| Potters Bar to Moosburg | 580.85 mi (934.78 km) |
| Potters Bar to Morbach | 344.33 mi (554.15 km) |
| Potters Bar to Morfelden-Walldorf | 399.72 mi (643.28 km) |
| Potters Bar to Morlenbach | 416.49 mi (670.28 km) |
| Potters Bar to Morsbach | 346.02 mi (556.86 km) |
| Potters Bar to Mosbach | 440.30 mi (708.60 km) |
| Potters Bar to Mosigkau | 530.37 mi (853.54 km) |
| Potters Bar to Mossingen | 468.32 mi (753.68 km) |
| Potters Bar to Much | 331.79 mi (533.97 km) |
| Potters Bar to Mucheln | 515.57 mi (829.73 km) |
| Potters Bar to Muhlacker | 440.56 mi (709.02 km) |
