| Gebze to Collegno | 1,140.66 mi (1,835.72 km) |
| Gebze to Cologno al Serio | 1,044.34 mi (1,680.71 km) |
| Gebze to Cologno Monzese | 1,063.64 mi (1,711.77 km) |
| Gebze to Colorno | 1,003.39 mi (1,614.81 km) |
| Gebze to Comacchio | 913.71 mi (1,470.48 km) |
| Gebze to Comiso | 839.81 mi (1,351.54 km) |
| Gebze to Como | 1,076.49 mi (1,732.45 km) |
| Gebze to Concordia Sagittaria | 899.78 mi (1,448.06 km) |
| Gebze to Concorezzo | 1,061.70 mi (1,708.64 km) |
| Gebze to Conegliano | 927.65 mi (1,492.91 km) |
| Gebze to Conselice | 928.33 mi (1,494.01 km) |
| Gebze to Conselve | 936.51 mi (1,507.17 km) |
| Gebze to Conversano | 642.96 mi (1,034.74 km) |
| Gebze to Copertino | 598.48 mi (963.16 km) |
| Gebze to Copparo | 933.25 mi (1,501.92 km) |
