| Widnau to Coudekerque-Branche | 411.49 mi (662.23 km) |
| Widnau to Coueron | 531.71 mi (855.70 km) |
| Widnau to Coulommiers | 317.50 mi (510.96 km) |
| Widnau to Courbevoic | 355.45 mi (572.04 km) |
| Widnau to Courcouronnes | 343.41 mi (552.66 km) |
| Widnau to Cournon-d'Auvergne | 326.33 mi (525.18 km) |
| Widnau to Courrieres | 369.60 mi (594.81 km) |
| Widnau to Coutras | 493.91 mi (794.87 km) |
| Widnau to Couzeix | 411.69 mi (662.55 km) |
| Widnau to Cran-Gevrier | 196.71 mi (316.57 km) |
| Widnau to Craponne | 259.65 mi (417.87 km) |
| Widnau to Creil | 352.49 mi (567.27 km) |
| Widnau to Crepy-en-Valois | 334.72 mi (538.68 km) |
| Widnau to Crest | 287.90 mi (463.32 km) |
| Widnau to Creteil | 344.43 mi (554.30 km) |
