| Opelika to Carmignano | 4,987.28 mi (8,026.26 km) |
| Opelika to Carovigno | 5,389.45 mi (8,673.48 km) |
| Opelika to Carpenedolo | 4,911.51 mi (7,904.31 km) |
| Opelika to Carpi | 4,949.79 mi (7,965.91 km) |
| Opelika to Carrara | 4,938.52 mi (7,947.79 km) |
| Opelika to Carugate | 4,858.34 mi (7,818.74 km) |
| Opelika to Casal di Principe | 5,221.28 mi (8,402.83 km) |
| Opelika to Casale Monferrato | 4,833.36 mi (7,778.54 km) |
| Opelika to Casale sul Sile | 4,984.97 mi (8,022.53 km) |
| Opelika to Casalecchio di Reno | 4,976.93 mi (8,009.60 km) |
| Opelika to Casalgrande | 4,949.80 mi (7,965.94 km) |
| Opelika to Casalmaggiore | 4,922.96 mi (7,922.75 km) |
| Opelika to Casalnuovo di Napoli | 5,234.53 mi (8,424.15 km) |
| Opelika to Casalpusterlengo | 4,883.75 mi (7,859.64 km) |
| Opelika to Casaluce | 5,224.85 mi (8,408.59 km) |
