| Jefferson Hills to Cognac | 3,870.44 mi (6,228.87 km) |
| Jefferson Hills to Cogolin | 4,248.17 mi (6,836.76 km) |
| Jefferson Hills to Colmar | 4,121.29 mi (6,632.58 km) |
| Jefferson Hills to Colombes | 3,886.14 mi (6,254.14 km) |
| Jefferson Hills to Colomiers | 4,007.47 mi (6,449.41 km) |
| Jefferson Hills to Combs-la-Ville | 3,906.21 mi (6,286.44 km) |
| Jefferson Hills to Comines | 3,864.57 mi (6,219.42 km) |
| Jefferson Hills to Compiegne | 3,895.42 mi (6,269.07 km) |
| Jefferson Hills to Concarneau | 3,654.62 mi (5,881.54 km) |
| Jefferson Hills to Conde-sur-l'Escaut | 3,896.72 mi (6,271.16 km) |
| Jefferson Hills to Conflans-Sainte-Honorine | 3,877.62 mi (6,240.43 km) |
| Jefferson Hills to Corbas | 4,097.12 mi (6,593.68 km) |
| Jefferson Hills to Corbeil-Essonnes | 3,904.62 mi (6,283.88 km) |
| Jefferson Hills to Cormeilles-en-Parisis | 3,882.60 mi (6,248.44 km) |
| Jefferson Hills to Cosne sur Loire | 3,958.84 mi (6,371.14 km) |
