| Opmeer to Miedzyrzec Podlaski | 752.48 mi (1,211.00 km) |
| Opmeer to Miedzyrzecz | 446.64 mi (718.79 km) |
| Opmeer to Mielec | 726.74 mi (1,169.58 km) |
| Opmeer to Mikolow | 624.72 mi (1,005.39 km) |
| Opmeer to Milanowek | 662.85 mi (1,066.75 km) |
| Opmeer to Milicz | 528.76 mi (850.96 km) |
| Opmeer to Minsk Mazowiecki | 699.20 mi (1,125.25 km) |
| Opmeer to Mlawa | 641.81 mi (1,032.89 km) |
| Opmeer to Mogilno | 543.89 mi (875.31 km) |
| Opmeer to Monki | 741.69 mi (1,193.63 km) |
| Opmeer to Morag | 623.06 mi (1,002.71 km) |
| Opmeer to Mosina | 501.03 mi (806.33 km) |
| Opmeer to Mragowo | 678.64 mi (1,092.17 km) |
| Opmeer to Murowana Goslina | 505.49 mi (813.51 km) |
| Opmeer to Myslenice | 676.11 mi (1,088.09 km) |
