| Potters Bar to Marasesti | 1,302.04 mi (2,095.43 km) |
| Potters Bar to Marghita | 1,048.79 mi (1,687.87 km) |
| Potters Bar to Marginea | 1,185.00 mi (1,907.07 km) |
| Potters Bar to Matca | 1,315.90 mi (2,117.74 km) |
| Potters Bar to Medgidia | 1,401.69 mi (2,255.81 km) |
| Potters Bar to Media | 1,171.24 mi (1,884.93 km) |
| Potters Bar to Miercurea-Ciuc | 1,226.07 mi (1,973.17 km) |
| Potters Bar to Mioveni | 1,236.79 mi (1,990.43 km) |
| Potters Bar to Mizil | 1,298.27 mi (2,089.36 km) |
| Potters Bar to Moinesti | 1,252.75 mi (2,016.11 km) |
| Potters Bar to Moisei | 1,134.00 mi (1,825.00 km) |
| Potters Bar to Moldova Noua | 1,109.85 mi (1,786.13 km) |
| Potters Bar to Moreni | 1,265.47 mi (2,036.58 km) |
| Potters Bar to Motru | 1,160.39 mi (1,867.47 km) |
| Potters Bar to Murfatlar | 1,410.67 mi (2,270.25 km) |
