| Opelika to Caltagirone | 5,374.94 mi (8,650.13 km) |
| Opelika to Caltanissetta | 5,344.73 mi (8,601.52 km) |
| Opelika to Calvisano | 4,908.32 mi (7,899.18 km) |
| Opelika to Calvizzano | 5,227.67 mi (8,413.11 km) |
| Opelika to Camaiore | 4,952.03 mi (7,969.52 km) |
| Opelika to Cameri | 4,830.37 mi (7,773.73 km) |
| Opelika to Camisano Vicentino | 4,961.53 mi (7,984.82 km) |
| Opelika to Campagna | 5,277.02 mi (8,492.54 km) |
| Opelika to Campagnano di Roma | 5,104.24 mi (8,214.48 km) |
| Opelika to Campi Bisenzio | 4,992.39 mi (8,034.47 km) |
| Opelika to Campi Salentina | 5,416.17 mi (8,716.48 km) |
| Opelika to Campiglia Marittima | 4,994.37 mi (8,037.66 km) |
| Opelika to Campobasso | 5,225.38 mi (8,409.44 km) |
| Opelika to Campobello di Licata | 5,346.63 mi (8,604.57 km) |
| Opelika to Campobello di Mazara | 5,278.19 mi (8,494.42 km) |
