| Opelika to Carrollwood (Florida) | 360.90 mi (580.82 km) |
| Opelika to Carson (California) | 1,893.48 mi (3,047.26 km) |
| Opelika to Carson City (Nevada) | 1,962.62 mi (3,158.54 km) |
| Opelika to Carteret (New Jersey) | 824.54 mi (1,326.97 km) |
| Opelika to Cartersville (Georgia) | 109.04 mi (175.49 km) |
| Opelika to Carthage (Missouri) | 593.84 mi (955.69 km) |
| Opelika to Cary (Illinois) | 678.39 mi (1,091.77 km) |
| Opelika to Cary (North Carolina) | 432.10 mi (695.40 km) |
| Opelika to Casa de Oro-Mount Helix (California) | 1,829.66 mi (2,944.55 km) |
| Opelika to Casa Grande (Arizona) | 1,528.74 mi (2,460.27 km) |
| Opelika to Casas Adobes (Arizona) | 1,490.27 mi (2,398.36 km) |
| Opelika to Cascades (Virginia) | 627.83 mi (1,010.40 km) |
| Opelika to Casper (Wyoming) | 1,337.45 mi (2,152.41 km) |
| Opelika to Casselberry (Florida) | 366.56 mi (589.93 km) |
| Opelika to Castaic (California) | 1,909.97 mi (3,073.80 km) |
