| Oak Ridge to Cognac | 4,237.70 mi (6,819.91 km) |
| Oak Ridge to Cogolin | 4,615.47 mi (7,427.88 km) |
| Oak Ridge to Colmar | 4,496.27 mi (7,236.04 km) |
| Oak Ridge to Colombes | 4,260.09 mi (6,855.95 km) |
| Oak Ridge to Colomiers | 4,371.71 mi (7,035.59 km) |
| Oak Ridge to Combs-la-Ville | 4,279.92 mi (6,887.87 km) |
| Oak Ridge to Comines | 4,241.13 mi (6,825.44 km) |
| Oak Ridge to Compiegne | 4,270.26 mi (6,872.31 km) |
| Oak Ridge to Concarneau | 4,024.07 mi (6,476.11 km) |
| Oak Ridge to Conde-sur-l'Escaut | 4,273.11 mi (6,876.91 km) |
| Oak Ridge to Conflans-Sainte-Honorine | 4,251.61 mi (6,842.30 km) |
| Oak Ridge to Corbas | 4,467.44 mi (7,189.65 km) |
| Oak Ridge to Corbeil-Essonnes | 4,278.22 mi (6,885.13 km) |
| Oak Ridge to Cormeilles-en-Parisis | 4,256.59 mi (6,850.32 km) |
| Oak Ridge to Cosne sur Loire | 4,330.85 mi (6,969.83 km) |
