| Opmeer to Mislata | 948.57 mi (1,526.58 km) |
| Opmeer to Moana | 959.62 mi (1,544.36 km) |
| Opmeer to Moguer | 1,207.94 mi (1,944.00 km) |
| Opmeer to Molina de Segura | 1,054.20 mi (1,696.57 km) |
| Opmeer to Molins de Rey | 791.76 mi (1,274.21 km) |
| Opmeer to Mollerusa | 787.77 mi (1,267.80 km) |
| Opmeer to Mollet | 781.91 mi (1,258.37 km) |
| Opmeer to Moncada | 785.43 mi (1,264.02 km) |
| Opmeer to Moncada | 943.58 mi (1,518.55 km) |
| Opmeer to Monforte de Lemos | 909.66 mi (1,463.95 km) |
| Opmeer to Monforte del Cid | 1,026.14 mi (1,651.41 km) |
| Opmeer to Mongat | 786.11 mi (1,265.12 km) |
| Opmeer to Monovar | 1,023.65 mi (1,647.40 km) |
| Opmeer to Monserrat | 958.87 mi (1,543.15 km) |
| Opmeer to Montijo | 1,100.64 mi (1,771.32 km) |
