| Oak Ridge to Cordele (Georgia) | 278.52 mi (448.24 km) |
| Oak Ridge to Corinth (Mississippi) | 247.67 mi (398.59 km) |
| Oak Ridge to Corinth (Texas) | 751.95 mi (1,210.15 km) |
| Oak Ridge to Cornelius (North Carolina) | 194.41 mi (312.87 km) |
| Oak Ridge to Cornelius (Oregon) | 2,110.29 mi (3,396.19 km) |
| Oak Ridge to Corning (New York) | 576.88 mi (928.40 km) |
| Oak Ridge to Corona (California) | 1,881.57 mi (3,028.09 km) |
| Oak Ridge to Coronado (California) | 1,880.52 mi (3,026.41 km) |
| Oak Ridge to Corpus Christi (Texas) | 954.33 mi (1,535.85 km) |
| Oak Ridge to Corsicana (Texas) | 746.20 mi (1,200.90 km) |
| Oak Ridge to Cortland (New York) | 630.77 mi (1,015.12 km) |
| Oak Ridge to Corvallis (Oregon) | 2,117.36 mi (3,407.55 km) |
| Oak Ridge to Coshocton (Ohio) | 325.33 mi (523.56 km) |
| Oak Ridge to Costa Mesa (California) | 1,904.28 mi (3,064.65 km) |
| Oak Ridge to Coto de Caza (California) | 1,887.26 mi (3,037.25 km) |
