| Oak Ridge to Carlsbad (California) | 1,878.77 mi (3,023.58 km) |
| Oak Ridge to Carlsbad (New Mexico) | 1,164.07 mi (1,873.38 km) |
| Oak Ridge to Carmel (Indiana) | 294.26 mi (473.57 km) |
| Oak Ridge to Carmichael (California) | 2,029.98 mi (3,266.93 km) |
| Oak Ridge to Carney (Maryland) | 486.62 mi (783.13 km) |
| Oak Ridge to Carnot-Moon (Pennsylvania) | 384.56 mi (618.88 km) |
| Oak Ridge to Carol Stream (Illinois) | 460.05 mi (740.37 km) |
| Oak Ridge to Carolina (Puerto Rico) | 1,648.85 mi (2,653.57 km) |
| Oak Ridge to Carolina Forest (South Carolina) | 340.71 mi (548.32 km) |
| Oak Ridge to Carpentersville (Illinois) | 476.36 mi (766.62 km) |
| Oak Ridge to Carpinteria (California) | 1,981.03 mi (3,188.17 km) |
| Oak Ridge to Carrboro (North Carolina) | 291.18 mi (468.61 km) |
| Oak Ridge to Carroll (Iowa) | 706.21 mi (1,136.54 km) |
| Oak Ridge to Carrollton (Georgia) | 170.58 mi (274.53 km) |
| Oak Ridge to Carrollton (Texas) | 746.22 mi (1,200.93 km) |
