| Gebze to Cehegin | 1,667.99 mi (2,684.37 km) |
| Gebze to Cervello | 1,425.11 mi (2,293.49 km) |
| Gebze to Cervera | 1,458.04 mi (2,346.48 km) |
| Gebze to Ceuti | 1,640.76 mi (2,640.55 km) |
| Gebze to Cheste | 1,585.61 mi (2,551.79 km) |
| Gebze to Chiclana de la Frontera | 1,931.43 mi (3,108.33 km) |
| Gebze to Chipiona | 1,938.84 mi (3,120.26 km) |
| Gebze to Chiva | 1,587.57 mi (2,554.95 km) |
| Gebze to Churriana de la Vega | 1,784.12 mi (2,871.27 km) |
| Gebze to Ciempozuelos | 1,727.23 mi (2,779.71 km) |
| Gebze to Cieza | 1,645.34 mi (2,647.92 km) |
| Gebze to Cisterniga | 1,762.66 mi (2,836.73 km) |
| Gebze to Ciudad de Melilla | 1,792.02 mi (2,883.98 km) |
| Gebze to Ciudad Real | 1,761.76 mi (2,835.27 km) |
| Gebze to Ciudad-Rodrigo | 1,870.97 mi (3,011.04 km) |
