| Romanshorn to Cizre | 1,799.97 mi (2,896.77 km) |
| Romanshorn to Cobanlar | 1,235.83 mi (1,988.88 km) |
| Romanshorn to Corlu | 1,009.79 mi (1,625.10 km) |
| Romanshorn to Corum | 1,352.90 mi (2,177.29 km) |
| Romanshorn to Cukurca | 1,868.60 mi (3,007.22 km) |
| Romanshorn to Cukurcayir | 1,559.22 mi (2,509.33 km) |
| Romanshorn to Cumayeri | 1,159.95 mi (1,866.76 km) |
| Romanshorn to Cumra | 1,369.10 mi (2,203.36 km) |
| Romanshorn to Cungus | 1,634.16 mi (2,629.92 km) |
| Romanshorn to Dargecit | 1,770.52 mi (2,849.38 km) |
| Romanshorn to Davutlar | 1,132.47 mi (1,822.53 km) |
| Romanshorn to Demirozu | 1,592.69 mi (2,563.19 km) |
| Romanshorn to Demre | 1,310.87 mi (2,109.64 km) |
| Romanshorn to Denizciler | 1,558.46 mi (2,508.09 km) |
| Romanshorn to Denizli | 1,203.92 mi (1,937.51 km) |
