| Pen-y-Bont ar Ogwr to Melzo | 723.72 mi (1,164.71 km) |
| Pen-y-Bont ar Ogwr to Mendicino | 1,271.78 mi (2,046.73 km) |
| Pen-y-Bont ar Ogwr to Menfi | 1,253.35 mi (2,017.07 km) |
| Pen-y-Bont ar Ogwr to Mentana | 1,005.95 mi (1,618.93 km) |
| Pen-y-Bont ar Ogwr to Merano | 744.12 mi (1,197.54 km) |
| Pen-y-Bont ar Ogwr to Merate | 715.60 mi (1,151.65 km) |
| Pen-y-Bont ar Ogwr to Mercato San Severino | 1,143.33 mi (1,840.00 km) |
| Pen-y-Bont ar Ogwr to Mercogliano | 1,135.47 mi (1,827.36 km) |
| Pen-y-Bont ar Ogwr to Mesagne | 1,266.09 mi (2,037.58 km) |
| Pen-y-Bont ar Ogwr to Messina | 1,305.64 mi (2,101.23 km) |
| Pen-y-Bont ar Ogwr to Mestre | 832.46 mi (1,339.71 km) |
| Pen-y-Bont ar Ogwr to Mestrino | 815.63 mi (1,312.63 km) |
| Pen-y-Bont ar Ogwr to Milan | 716.76 mi (1,153.52 km) |
| Pen-y-Bont ar Ogwr to Milazzo | 1,293.57 mi (2,081.80 km) |
| Pen-y-Bont ar Ogwr to Minerbio | 839.82 mi (1,351.56 km) |
