| Potters Bar to Montevarchi | 784.46 mi (1,262.46 km) |
| Potters Bar to Monticello Conte Otto | 681.25 mi (1,096.37 km) |
| Potters Bar to Montichiari | 648.64 mi (1,043.89 km) |
| Potters Bar to Montignoso | 714.10 mi (1,149.23 km) |
| Potters Bar to Montopoli in Val d'Arno | 751.12 mi (1,208.80 km) |
| Potters Bar to Monza | 603.14 mi (970.66 km) |
| Potters Bar to Morbegno | 585.47 mi (942.22 km) |
| Potters Bar to Mori | 648.25 mi (1,043.25 km) |
| Potters Bar to Morlupo | 888.73 mi (1,430.27 km) |
| Potters Bar to Morrovalle | 862.38 mi (1,387.87 km) |
| Potters Bar to Mortara | 604.05 mi (972.12 km) |
| Potters Bar to Mosciano Sant'Angelo | 901.50 mi (1,450.83 km) |
| Potters Bar to Motta di Livenza | 710.40 mi (1,143.28 km) |
| Potters Bar to Motta Sant'Anastasia | 1,226.81 mi (1,974.36 km) |
| Potters Bar to Mottola | 1,118.71 mi (1,800.39 km) |
