| Chepstow to Melzo | 695.44 mi (1,119.20 km) |
| Chepstow to Mendicino | 1,245.32 mi (2,004.16 km) |
| Chepstow to Menfi | 1,232.31 mi (1,983.21 km) |
| Chepstow to Mentana | 979.79 mi (1,576.81 km) |
| Chepstow to Merano | 711.70 mi (1,145.37 km) |
| Chepstow to Merate | 686.88 mi (1,105.43 km) |
| Chepstow to Mercato San Severino | 1,116.52 mi (1,796.86 km) |
| Chepstow to Mercogliano | 1,108.51 mi (1,783.98 km) |
| Chepstow to Mesagne | 1,236.78 mi (1,990.40 km) |
| Chepstow to Messina | 1,280.99 mi (2,061.55 km) |
| Chepstow to Mestre | 801.21 mi (1,289.43 km) |
| Chepstow to Mestrino | 784.88 mi (1,263.15 km) |
| Chepstow to Milan | 688.85 mi (1,108.59 km) |
| Chepstow to Milazzo | 1,269.23 mi (2,042.63 km) |
| Chepstow to Minerbio | 810.83 mi (1,304.91 km) |
