| Merthyr Tudful to Moncalieri | 687.73 mi (1,106.80 km) |
| Merthyr Tudful to Mondolfo | 940.45 mi (1,513.51 km) |
| Merthyr Tudful to Mondovi | 723.59 mi (1,164.51 km) |
| Merthyr Tudful to Monesiglio | 729.18 mi (1,173.51 km) |
| Merthyr Tudful to Monfalcone | 869.83 mi (1,399.85 km) |
| Merthyr Tudful to Monopoli | 1,229.16 mi (1,978.15 km) |
| Merthyr Tudful to Monreale | 1,241.42 mi (1,997.87 km) |
| Merthyr Tudful to Monselice | 823.50 mi (1,325.30 km) |
| Merthyr Tudful to Monserrato | 1,051.89 mi (1,692.85 km) |
| Merthyr Tudful to Monsummano | 851.87 mi (1,370.95 km) |
| Merthyr Tudful to Montagnana | 812.71 mi (1,307.94 km) |
| Merthyr Tudful to Montale | 855.76 mi (1,377.22 km) |
| Merthyr Tudful to Montalto di Castro | 954.97 mi (1,536.87 km) |
| Merthyr Tudful to Montalto Uffugo | 1,265.19 mi (2,036.13 km) |
| Merthyr Tudful to Monte Compatri | 1,021.88 mi (1,644.55 km) |
