| Pen-y-Bont ar Ogwr to Manerbio | 756.43 mi (1,217.35 km) |
| Pen-y-Bont ar Ogwr to Manfredonia | 1,144.24 mi (1,841.48 km) |
| Pen-y-Bont ar Ogwr to Maniago | 825.39 mi (1,328.34 km) |
| Pen-y-Bont ar Ogwr to Mantova | 790.44 mi (1,272.10 km) |
| Pen-y-Bont ar Ogwr to Maranello | 820.93 mi (1,321.17 km) |
| Pen-y-Bont ar Ogwr to Marano di Napoli | 1,116.56 mi (1,796.93 km) |
| Pen-y-Bont ar Ogwr to Marano Vicentino | 792.42 mi (1,275.28 km) |
| Pen-y-Bont ar Ogwr to Marcianise | 1,114.02 mi (1,792.85 km) |
| Pen-y-Bont ar Ogwr to Marcon | 832.32 mi (1,339.49 km) |
| Pen-y-Bont ar Ogwr to Mareno di Piave | 823.12 mi (1,324.69 km) |
| Pen-y-Bont ar Ogwr to Margherita di Savoia | 1,165.67 mi (1,875.97 km) |
| Pen-y-Bont ar Ogwr to Mariano Comense | 706.23 mi (1,136.56 km) |
| Pen-y-Bont ar Ogwr to Marigliano | 1,124.42 mi (1,809.58 km) |
| Pen-y-Bont ar Ogwr to Marino | 1,019.08 mi (1,640.05 km) |
| Pen-y-Bont ar Ogwr to Marostica | 799.30 mi (1,286.35 km) |
