| Opelika to Busto Arsizio | 4,835.63 mi (7,782.19 km) |
| Opelika to Busto Garolfo | 4,839.13 mi (7,787.83 km) |
| Opelika to Cabras | 5,002.27 mi (8,050.38 km) |
| Opelika to Cadelbosco di Sopra | 4,938.07 mi (7,947.05 km) |
| Opelika to Cadoneghe | 4,972.95 mi (8,003.20 km) |
| Opelika to Cagli | 5,067.59 mi (8,155.49 km) |
| Opelika to Cagliari | 5,052.55 mi (8,131.30 km) |
| Opelika to Cairo Montenotte | 4,847.72 mi (7,801.65 km) |
| Opelika to Caivano | 5,231.10 mi (8,418.65 km) |
| Opelika to Calcinaia | 4,974.11 mi (8,005.05 km) |
| Opelika to Calcinato | 4,907.77 mi (7,898.30 km) |
| Opelika to Calderara di Reno | 4,973.47 mi (8,004.02 km) |
| Opelika to Caldogno | 4,949.34 mi (7,965.19 km) |
| Opelika to Calenzano | 4,992.20 mi (8,034.17 km) |
| Opelika to Calolziocorte | 4,854.81 mi (7,813.06 km) |
