| Ronciglione to Coudekerque-Branche | 761.06 mi (1,224.80 km) |
| Ronciglione to Coueron | 762.39 mi (1,226.96 km) |
| Ronciglione to Coulommiers | 630.42 mi (1,014.56 km) |
| Ronciglione to Courbevoic | 662.63 mi (1,066.40 km) |
| Ronciglione to Courcouronnes | 644.40 mi (1,037.06 km) |
| Ronciglione to Cournon-d'Auvergne | 507.19 mi (816.25 km) |
| Ronciglione to Courrieres | 715.60 mi (1,151.65 km) |
| Ronciglione to Coutras | 644.82 mi (1,037.73 km) |
| Ronciglione to Couzeix | 597.81 mi (962.08 km) |
| Ronciglione to Cran-Gevrier | 392.61 mi (631.85 km) |
| Ronciglione to Craponne | 441.94 mi (711.24 km) |
| Ronciglione to Creil | 671.11 mi (1,080.04 km) |
| Ronciglione to Crepy-en-Valois | 656.61 mi (1,056.71 km) |
| Ronciglione to Crest | 397.68 mi (640.00 km) |
| Ronciglione to Creteil | 650.58 mi (1,047.01 km) |
