| Opelika to Camarillo (California) | 1,934.58 mi (3,113.40 km) |
| Opelika to Camas (Washington) | 2,153.39 mi (3,465.55 km) |
| Opelika to Cambridge (Maryland) | 661.55 mi (1,064.66 km) |
| Opelika to Cambridge (Massachusetts) | 1,027.56 mi (1,653.69 km) |
| Opelika to Camden (Arkansas) | 436.70 mi (702.79 km) |
| Opelika to Camden (New Jersey) | 760.41 mi (1,223.76 km) |
| Opelika to Cameron Park (California) | 2,028.33 mi (3,264.28 km) |
| Opelika to Camp Pendleton South (California) | 1,849.44 mi (2,976.39 km) |
| Opelika to Camp Springs (Maryland) | 636.00 mi (1,023.55 km) |
| Opelika to Camp Verde (Arizona) | 1,524.92 mi (2,454.11 km) |
| Opelika to Campbell (California) | 2,082.27 mi (3,351.09 km) |
| Opelika to Campbellsville (Kentucky) | 323.59 mi (520.76 km) |
| Opelika to Campton Hills (Illinois) | 663.04 mi (1,067.06 km) |
| Opelika to Canby (Oregon) | 2,161.16 mi (3,478.04 km) |
| Opelika to Candelaria (Puerto Rico) | 1,543.45 mi (2,483.94 km) |
