| Opelika to Clemson (South Carolina) | 203.14 mi (326.92 km) |
| Opelika to Clermont (Florida) | 358.62 mi (577.15 km) |
| Opelika to Cleveland (Mississippi) | 318.27 mi (512.20 km) |
| Opelika to Cleveland (Ohio) | 642.08 mi (1,033.33 km) |
| Opelika to Cleveland (Tennessee) | 176.55 mi (284.13 km) |
| Opelika to Cleveland Heights (Ohio) | 646.41 mi (1,040.29 km) |
| Opelika to Cliffside Park (New Jersey) | 844.58 mi (1,359.21 km) |
| Opelika to Clifton (Colorado) | 1,361.84 mi (2,191.67 km) |
| Opelika to Clifton (New Jersey) | 839.40 mi (1,350.89 km) |
| Opelika to Clinton (Iowa) | 688.22 mi (1,107.58 km) |
| Opelika to Clinton (Maryland) | 634.16 mi (1,020.58 km) |
| Opelika to Clinton (Mississippi) | 289.96 mi (466.64 km) |
| Opelika to Clinton (Utah) | 1,578.80 mi (2,540.84 km) |
| Opelika to Clive (Iowa) | 772.34 mi (1,242.96 km) |
| Opelika to Cloquet (Minnesota) | 1,041.47 mi (1,676.09 km) |
