| Grenchen to Coudekerque-Branche | 348.32 mi (560.57 km) |
| Grenchen to Coueron | 427.83 mi (688.53 km) |
| Grenchen to Coulommiers | 228.77 mi (368.17 km) |
| Grenchen to Courbevoic | 265.18 mi (426.76 km) |
| Grenchen to Courcouronnes | 250.40 mi (402.98 km) |
| Grenchen to Cournon-d'Auvergne | 223.46 mi (359.62 km) |
| Grenchen to Courrieres | 303.09 mi (487.78 km) |
| Grenchen to Coutras | 389.63 mi (627.05 km) |
| Grenchen to Couzeix | 306.36 mi (493.04 km) |
| Grenchen to Cran-Gevrier | 108.07 mi (173.92 km) |
| Grenchen to Craponne | 161.71 mi (260.24 km) |
| Grenchen to Creil | 267.42 mi (430.37 km) |
| Grenchen to Crepy-en-Valois | 251.01 mi (403.95 km) |
| Grenchen to Crest | 204.79 mi (329.58 km) |
| Grenchen to Creteil | 253.46 mi (407.90 km) |
