| Gebze to Cognac | 1,526.15 mi (2,456.09 km) |
| Gebze to Cogolin | 1,183.86 mi (1,905.24 km) |
| Gebze to Colmar | 1,194.09 mi (1,921.70 km) |
| Gebze to Colombes | 1,434.79 mi (2,309.06 km) |
| Gebze to Colomiers | 1,444.02 mi (2,323.93 km) |
| Gebze to Combs-la-Ville | 1,417.29 mi (2,280.91 km) |
| Gebze to Comines | 1,436.39 mi (2,311.64 km) |
| Gebze to Compiegne | 1,417.78 mi (2,281.70 km) |
| Gebze to Concarneau | 1,704.20 mi (2,742.64 km) |
| Gebze to Conde-sur-l'Escaut | 1,405.35 mi (2,261.69 km) |
| Gebze to Conflans-Sainte-Honorine | 1,442.75 mi (2,321.88 km) |
| Gebze to Corbas | 1,274.25 mi (2,050.70 km) |
| Gebze to Corbeil-Essonnes | 1,419.94 mi (2,285.17 km) |
| Gebze to Cormeilles-en-Parisis | 1,437.80 mi (2,313.92 km) |
| Gebze to Cosne sur Loire | 1,384.15 mi (2,227.58 km) |
