| Hemel Hempstead to Montevarchi | 796.17 mi (1,281.31 km) |
| Hemel Hempstead to Monticello Conte Otto | 693.56 mi (1,116.18 km) |
| Hemel Hempstead to Montichiari | 660.66 mi (1,063.22 km) |
| Hemel Hempstead to Montignoso | 725.57 mi (1,167.69 km) |
| Hemel Hempstead to Montopoli in Val d'Arno | 762.65 mi (1,227.36 km) |
| Hemel Hempstead to Monza | 614.91 mi (989.61 km) |
| Hemel Hempstead to Morbegno | 597.53 mi (961.63 km) |
| Hemel Hempstead to Mori | 660.52 mi (1,063.00 km) |
| Hemel Hempstead to Morlupo | 900.29 mi (1,448.87 km) |
| Hemel Hempstead to Morrovalle | 874.47 mi (1,407.33 km) |
| Hemel Hempstead to Mortara | 615.52 mi (990.58 km) |
| Hemel Hempstead to Mosciano Sant'Angelo | 913.52 mi (1,470.17 km) |
| Hemel Hempstead to Motta di Livenza | 722.90 mi (1,163.40 km) |
| Hemel Hempstead to Motta Sant'Anastasia | 1,237.93 mi (1,992.26 km) |
| Hemel Hempstead to Mottola | 1,130.83 mi (1,819.90 km) |
