| Romanshorn to Coudekerque-Branche | 394.31 mi (634.58 km) |
| Romanshorn to Coueron | 518.37 mi (834.23 km) |
| Romanshorn to Coulommiers | 301.51 mi (485.23 km) |
| Romanshorn to Courbevoic | 339.54 mi (546.43 km) |
| Romanshorn to Courcouronnes | 327.83 mi (527.60 km) |
| Romanshorn to Cournon-d'Auvergne | 317.95 mi (511.68 km) |
| Romanshorn to Courrieres | 352.46 mi (567.23 km) |
| Romanshorn to Coutras | 484.76 mi (780.14 km) |
| Romanshorn to Couzeix | 401.59 mi (646.30 km) |
| Romanshorn to Cran-Gevrier | 192.01 mi (309.00 km) |
| Romanshorn to Craponne | 253.04 mi (407.23 km) |
| Romanshorn to Creil | 336.12 mi (540.93 km) |
| Romanshorn to Crepy-en-Valois | 318.29 mi (512.24 km) |
| Romanshorn to Crest | 285.26 mi (459.08 km) |
| Romanshorn to Creteil | 328.61 mi (528.85 km) |
