| Gebze to Cadiz | 1,936.35 mi (3,116.25 km) |
| Gebze to Calafell | 1,446.99 mi (2,328.71 km) |
| Gebze to Calahorra | 1,617.72 mi (2,603.47 km) |
| Gebze to Calasparra | 1,660.17 mi (2,671.79 km) |
| Gebze to Calatayud | 1,609.87 mi (2,590.84 km) |
| Gebze to Caldas de Montbuy | 1,412.37 mi (2,272.98 km) |
| Gebze to Caldas de Reyes | 1,951.34 mi (3,140.37 km) |
| Gebze to Calella | 1,387.02 mi (2,232.19 km) |
| Gebze to Callosa de Segura | 1,619.43 mi (2,606.22 km) |
| Gebze to Calpe | 1,561.56 mi (2,513.09 km) |
| Gebze to Calvia | 1,418.39 mi (2,282.68 km) |
| Gebze to Camas | 1,903.04 mi (3,062.64 km) |
| Gebze to Cambados | 1,960.63 mi (3,155.34 km) |
| Gebze to Cambre | 1,928.94 mi (3,104.33 km) |
| Gebze to Cambrils | 1,474.75 mi (2,373.37 km) |
