| Riom to Corbetta | 281.67 mi (453.30 km) |
| Riom to Corciano | 490.07 mi (788.69 km) |
| Riom to Cordenons | 460.44 mi (741.01 km) |
| Riom to Cori | 569.74 mi (916.90 km) |
| Riom to Coriano | 482.47 mi (776.46 km) |
| Riom to Corigliano Calabro | 805.62 mi (1,296.52 km) |
| Riom to Corleone | 764.48 mi (1,230.31 km) |
| Riom to Cormano | 292.93 mi (471.42 km) |
| Riom to Cornaredo | 286.95 mi (461.81 km) |
| Riom to Cornate d'Adda | 306.61 mi (493.45 km) |
| Riom to Cornedo Vicentino | 397.40 mi (639.55 km) |
| Riom to Correggio | 380.37 mi (612.15 km) |
| Riom to Corridonia | 543.20 mi (874.20 km) |
| Riom to Corsico | 291.60 mi (469.28 km) |
| Riom to Cortona | 472.40 mi (760.26 km) |
