| Opelika to Cervignano del Friuli | 5,019.73 mi (8,078.47 km) |
| Opelika to Cesa | 5,227.53 mi (8,412.89 km) |
| Opelika to Cesano Maderno | 4,847.72 mi (7,801.66 km) |
| Opelika to Cesena | 5,030.03 mi (8,095.06 km) |
| Opelika to Cesenatico | 5,034.47 mi (8,102.19 km) |
| Opelika to Cetraro | 5,357.79 mi (8,622.53 km) |
| Opelika to Cherasco | 4,822.37 mi (7,760.86 km) |
| Opelika to Chiampo | 4,941.97 mi (7,953.34 km) |
| Opelika to Chiaravalle | 5,095.58 mi (8,200.54 km) |
| Opelika to Chiari | 4,882.98 mi (7,858.40 km) |
| Opelika to Chiavari | 4,897.27 mi (7,881.39 km) |
| Opelika to Chieri | 4,809.27 mi (7,739.78 km) |
| Opelika to Chieti | 5,175.53 mi (8,329.21 km) |
| Opelika to Chioggia | 4,995.32 mi (8,039.20 km) |
| Opelika to Chiusi | 5,054.99 mi (8,135.23 km) |
