| Gebze to Cassina de' Pecchi | 1,059.28 mi (1,704.75 km) |
| Gebze to Cassino | 811.95 mi (1,306.71 km) |
| Gebze to Castagneto Carducci | 978.83 mi (1,575.28 km) |
| Gebze to Castano Primo | 1,088.26 mi (1,751.38 km) |
| Gebze to Castel Bolognese | 927.68 mi (1,492.95 km) |
| Gebze to Castel Gandolfo | 872.49 mi (1,404.14 km) |
| Gebze to Castel Goffredo | 1,003.62 mi (1,615.18 km) |
| Gebze to Castel Maggiore | 951.56 mi (1,531.39 km) |
| Gebze to Castel Mella | 1,021.86 mi (1,644.52 km) |
| Gebze to Castel San Giorgio | 769.79 mi (1,238.85 km) |
| Gebze to Castel San Giovanni | 1,050.51 mi (1,690.63 km) |
| Gebze to Castel San Pietro Terme | 939.16 mi (1,511.43 km) |
| Gebze to Castel Volturno | 809.15 mi (1,302.21 km) |
| Gebze to Castelbuono | 841.45 mi (1,354.18 km) |
| Gebze to Casteldaccia | 868.30 mi (1,397.40 km) |
