| Opelika to Cockermouth | 4,109.49 mi (6,613.58 km) |
| Opelika to Colchester | 4,333.49 mi (6,974.09 km) |
| Opelika to Coleford | 4,192.66 mi (6,747.43 km) |
| Opelika to Colne | 4,170.31 mi (6,711.47 km) |
| Opelika to Colwyn Bay | 4,120.48 mi (6,631.27 km) |
| Opelika to Congleton | 4,181.93 mi (6,730.16 km) |
| Opelika to Conisbrough | 4,214.89 mi (6,783.20 km) |
| Opelika to Connahs Quay | 4,147.42 mi (6,674.64 km) |
| Opelika to Consett | 4,165.07 mi (6,703.04 km) |
| Opelika to Conwy | 4,115.47 mi (6,623.21 km) |
| Opelika to Cookstown | 3,978.15 mi (6,402.21 km) |
| Opelika to Corby | 4,256.03 mi (6,849.42 km) |
| Opelika to Corfe Mullen | 4,238.20 mi (6,820.72 km) |
| Opelika to Corsham | 4,217.54 mi (6,787.48 km) |
| Opelika to Coseley | 4,199.26 mi (6,758.05 km) |
