| Opelika to Butzbach | 4,682.67 mi (7,536.04 km) |
| Opelika to Buxtehude | 4,635.23 mi (7,459.68 km) |
| Opelika to Cadolzburg | 4,800.58 mi (7,725.79 km) |
| Opelika to Calbe | 4,760.39 mi (7,661.12 km) |
| Opelika to Calw | 4,736.19 mi (7,622.16 km) |
| Opelika to Castrop-Rauxel | 4,597.76 mi (7,399.38 km) |
| Opelika to Celle | 4,674.23 mi (7,522.44 km) |
| Opelika to Cham | 4,879.33 mi (7,852.52 km) |
| Opelika to Chemnitz | 4,837.81 mi (7,785.71 km) |
| Opelika to Clausthal-Zellerfeld | 4,708.11 mi (7,576.98 km) |
| Opelika to Cloppenburg | 4,590.35 mi (7,387.45 km) |
| Opelika to Coburg | 4,779.33 mi (7,691.59 km) |
| Opelika to Coesfeld | 4,580.89 mi (7,372.22 km) |
| Opelika to Cologne | 4,600.27 mi (7,403.42 km) |
| Opelika to Coswig | 4,853.82 mi (7,811.48 km) |
