| Oak Ridge to Cadillac (Michigan) | 575.51 mi (926.20 km) |
| Oak Ridge to Caguas (Puerto Rico) | 1,655.75 mi (2,664.66 km) |
| Oak Ridge to Cahokia (Illinois) | 370.07 mi (595.57 km) |
| Oak Ridge to Calabasas (California) | 1,938.42 mi (3,119.58 km) |
| Oak Ridge to Caldwell (Idaho) | 1,785.15 mi (2,872.92 km) |
| Oak Ridge to Caledonia (Wisconsin) | 509.38 mi (819.77 km) |
| Oak Ridge to Calera (Alabama) | 240.65 mi (387.29 km) |
| Oak Ridge to Calexico (California) | 1,787.05 mi (2,875.98 km) |
| Oak Ridge to Calhoun (Georgia) | 108.08 mi (173.93 km) |
| Oak Ridge to California (Maryland) | 458.66 mi (738.15 km) |
| Oak Ridge to California City (California) | 1,878.80 mi (3,023.63 km) |
| Oak Ridge to Callaway (Florida) | 409.32 mi (658.74 km) |
| Oak Ridge to Calumet City (Illinois) | 427.85 mi (688.55 km) |
| Oak Ridge to Calverton (Maryland) | 455.59 mi (733.20 km) |
| Oak Ridge to Camano (Washington) | 2,105.16 mi (3,387.93 km) |
