| Potters Bar to Mechernich | 305.59 mi (491.80 km) |
| Potters Bar to Meckenbeuren | 515.10 mi (828.97 km) |
| Potters Bar to Meckenheim | 320.35 mi (515.55 km) |
| Potters Bar to Meerane | 549.05 mi (883.61 km) |
| Potters Bar to Meerbusch | 296.12 mi (476.56 km) |
| Potters Bar to Meine | 457.46 mi (736.22 km) |
| Potters Bar to Meinerzhagen | 339.09 mi (545.72 km) |
| Potters Bar to Meiningen | 466.02 mi (749.99 km) |
| Potters Bar to Meissen | 588.96 mi (947.84 km) |
| Potters Bar to Meitingen | 534.12 mi (859.58 km) |
| Potters Bar to Melle | 364.37 mi (586.40 km) |
| Potters Bar to Melsungen | 420.90 mi (677.37 km) |
| Potters Bar to Memmelsdorf | 500.67 mi (805.75 km) |
| Potters Bar to Memmingen | 527.49 mi (848.91 km) |
| Potters Bar to Mendig | 336.76 mi (541.97 km) |
