| Opelika to Melzo | 4,863.51 mi (7,827.06 km) |
| Opelika to Mendicino | 5,377.60 mi (8,654.41 km) |
| Opelika to Menfi | 5,289.35 mi (8,512.38 km) |
| Opelika to Mentana | 5,120.11 mi (8,240.02 km) |
| Opelika to Merano | 4,900.47 mi (7,886.54 km) |
| Opelika to Merate | 4,857.94 mi (7,818.10 km) |
| Opelika to Mercato San Severino | 5,257.93 mi (8,461.81 km) |
| Opelika to Mercogliano | 5,251.83 mi (8,452.01 km) |
| Opelika to Mesagne | 5,400.33 mi (8,691.00 km) |
| Opelika to Messina | 5,388.03 mi (8,671.19 km) |
| Opelika to Mestre | 4,984.57 mi (8,021.88 km) |
| Opelika to Mestrino | 4,965.86 mi (7,991.78 km) |
| Opelika to Milan | 4,854.76 mi (7,812.98 km) |
| Opelika to Milazzo | 5,372.59 mi (8,646.36 km) |
| Opelika to Minerbio | 4,980.66 mi (8,015.60 km) |
