| Opatija to Masquefa | 679.28 mi (1,093.20 km) |
| Opatija to Matadepera | 666.44 mi (1,072.52 km) |
| Opatija to Mazarron | 966.46 mi (1,555.37 km) |
| Opatija to Meco | 948.28 mi (1,526.10 km) |
| Opatija to Medina del Campo | 1,002.66 mi (1,613.63 km) |
| Opatija to Medina Sidonia | 1,215.65 mi (1,956.40 km) |
| Opatija to Mejorada del Campo | 955.93 mi (1,538.42 km) |
| Opatija to Meliana | 846.16 mi (1,361.77 km) |
| Opatija to Mengibar | 1,061.00 mi (1,707.51 km) |
| Opatija to Merida | 1,142.96 mi (1,839.42 km) |
| Opatija to Miajadas | 1,122.04 mi (1,805.74 km) |
| Opatija to Mieres | 1,000.62 mi (1,610.34 km) |
| Opatija to Miguelturra | 1,030.05 mi (1,657.71 km) |
| Opatija to Mijas | 1,153.18 mi (1,855.86 km) |
| Opatija to Miranda de Ebro | 873.94 mi (1,406.47 km) |
