| Opelika to Marrero (Louisiana) | 338.97 mi (545.53 km) |
| Opelika to Marshall (Minnesota) | 988.06 mi (1,590.13 km) |
| Opelika to Marshall (Missouri) | 624.51 mi (1,005.05 km) |
| Opelika to Marshall (Texas) | 522.31 mi (840.58 km) |
| Opelika to Marshalltown (Iowa) | 767.68 mi (1,235.46 km) |
| Opelika to Marshfield (Wisconsin) | 868.23 mi (1,397.29 km) |
| Opelika to Martha Lake (Washington) | 2,180.04 mi (3,508.44 km) |
| Opelika to Martin (Tennessee) | 321.96 mi (518.15 km) |
| Opelika to Martinez (California) | 2,089.67 mi (3,363.00 km) |
| Opelika to Martinez (Georgia) | 198.84 mi (320.01 km) |
| Opelika to Martinsburg (West Virginia) | 625.11 mi (1,006.01 km) |
| Opelika to Martinsville (Indiana) | 470.33 mi (756.92 km) |
| Opelika to Martinsville (New Jersey) | 811.11 mi (1,305.35 km) |
| Opelika to Martinsville (Virginia) | 418.60 mi (673.68 km) |
| Opelika to Maryland City (Maryland) | 653.84 mi (1,052.26 km) |
