| Pen-y-Bont ar Ogwr to Montevarchi | 893.46 mi (1,437.89 km) |
| Pen-y-Bont ar Ogwr to Monticello Conte Otto | 802.34 mi (1,291.25 km) |
| Pen-y-Bont ar Ogwr to Montichiari | 764.07 mi (1,229.66 km) |
| Pen-y-Bont ar Ogwr to Montignoso | 819.53 mi (1,318.91 km) |
| Pen-y-Bont ar Ogwr to Montopoli in Val d'Arno | 857.24 mi (1,379.59 km) |
| Pen-y-Bont ar Ogwr to Monza | 714.70 mi (1,150.20 km) |
| Pen-y-Bont ar Ogwr to Morbegno | 702.35 mi (1,130.32 km) |
| Pen-y-Bont ar Ogwr to Mori | 768.77 mi (1,237.22 km) |
| Pen-y-Bont ar Ogwr to Morlupo | 994.47 mi (1,600.45 km) |
| Pen-y-Bont ar Ogwr to Morrovalle | 978.03 mi (1,573.98 km) |
| Pen-y-Bont ar Ogwr to Mortara | 710.49 mi (1,143.42 km) |
| Pen-y-Bont ar Ogwr to Mosciano Sant'Angelo | 1,015.48 mi (1,634.25 km) |
| Pen-y-Bont ar Ogwr to Motta di Livenza | 835.72 mi (1,344.97 km) |
| Pen-y-Bont ar Ogwr to Motta Sant'Anastasia | 1,323.60 mi (2,130.14 km) |
| Pen-y-Bont ar Ogwr to Mottola | 1,234.01 mi (1,985.94 km) |
