| Cwmbran to Melzo | 708.37 mi (1,140.01 km) |
| Cwmbran to Mendicino | 1,257.82 mi (2,024.26 km) |
| Cwmbran to Menfi | 1,243.26 mi (2,000.84 km) |
| Cwmbran to Mentana | 992.18 mi (1,596.77 km) |
| Cwmbran to Merano | 725.64 mi (1,167.81 km) |
| Cwmbran to Merate | 699.93 mi (1,126.42 km) |
| Cwmbran to Mercato San Severino | 1,129.10 mi (1,817.11 km) |
| Cwmbran to Mercogliano | 1,121.13 mi (1,804.29 km) |
| Cwmbran to Mesagne | 1,250.02 mi (2,011.71 km) |
| Cwmbran to Messina | 1,292.99 mi (2,080.86 km) |
| Cwmbran to Mestre | 814.90 mi (1,311.45 km) |
| Cwmbran to Mestrino | 798.45 mi (1,284.97 km) |
| Cwmbran to Milan | 701.68 mi (1,129.24 km) |
| Cwmbran to Milazzo | 1,281.14 mi (2,061.80 km) |
| Cwmbran to Minerbio | 823.96 mi (1,326.03 km) |
