| Opelika to Castrovillari | 5,357.33 mi (8,621.79 km) |
| Opelika to Catania | 5,392.20 mi (8,677.90 km) |
| Opelika to Catanzaro | 5,409.43 mi (8,705.63 km) |
| Opelika to Cattolica | 5,057.03 mi (8,138.50 km) |
| Opelika to Cava de' Tirreni | 5,257.94 mi (8,461.84 km) |
| Opelika to Cavallino | 5,427.40 mi (8,734.55 km) |
| Opelika to Cavarzere | 4,989.66 mi (8,030.08 km) |
| Opelika to Cave | 5,139.64 mi (8,271.44 km) |
| Opelika to Cavriago | 4,937.34 mi (7,945.87 km) |
| Opelika to Cavriglia | 5,017.69 mi (8,075.19 km) |
| Opelika to Cazzago San Martino | 4,887.13 mi (7,865.08 km) |
| Opelika to Ceccano | 5,166.17 mi (8,314.14 km) |
| Opelika to Cecina | 4,981.72 mi (8,017.30 km) |
| Opelika to Cefalu | 5,322.94 mi (8,566.45 km) |
| Opelika to Ceglie Messapico | 5,384.00 mi (8,664.72 km) |
