| Opelika to Cordele (Georgia) | 105.75 mi (170.19 km) |
| Opelika to Corinth (Mississippi) | 239.55 mi (385.52 km) |
| Opelika to Corinth (Texas) | 678.68 mi (1,092.24 km) |
| Opelika to Cornelius (North Carolina) | 322.32 mi (518.73 km) |
| Opelika to Cornelius (Oregon) | 2,181.77 mi (3,511.22 km) |
| Opelika to Corning (New York) | 797.92 mi (1,284.13 km) |
| Opelika to Corona (California) | 1,853.90 mi (2,983.57 km) |
| Opelika to Coronado (California) | 1,841.70 mi (2,963.92 km) |
| Opelika to Corpus Christi (Texas) | 792.93 mi (1,276.09 km) |
| Opelika to Corsicana (Texas) | 648.08 mi (1,042.98 km) |
| Opelika to Cortland (New York) | 850.28 mi (1,368.39 km) |
| Opelika to Corvallis (Oregon) | 2,181.47 mi (3,510.74 km) |
| Opelika to Coshocton (Ohio) | 560.43 mi (901.93 km) |
| Opelika to Costa Mesa (California) | 1,875.37 mi (3,018.12 km) |
| Opelika to Coto de Caza (California) | 1,857.27 mi (2,988.99 km) |
