| Opmeer to Melzo | 536.68 mi (863.71 km) |
| Opmeer to Mendicino | 1,071.12 mi (1,723.80 km) |
| Opmeer to Menfi | 1,111.90 mi (1,789.43 km) |
| Opmeer to Mentana | 820.32 mi (1,320.18 km) |
| Opmeer to Merano | 500.24 mi (805.06 km) |
| Opmeer to Merate | 524.04 mi (843.37 km) |
| Opmeer to Mercato San Severino | 943.54 mi (1,518.48 km) |
| Opmeer to Mercogliano | 934.31 mi (1,503.63 km) |
| Opmeer to Mesagne | 1,033.24 mi (1,662.83 km) |
| Opmeer to Messina | 1,123.67 mi (1,808.37 km) |
| Opmeer to Mestre | 596.70 mi (960.29 km) |
| Opmeer to Mestrino | 587.72 mi (945.85 km) |
| Opmeer to Milan | 535.09 mi (861.14 km) |
| Opmeer to Milazzo | 1,115.40 mi (1,795.07 km) |
| Opmeer to Minerbio | 632.21 mi (1,017.44 km) |
