| Riom to Carpentras | 158.36 mi (254.86 km) |
| Riom to Carquefou | 239.13 mi (384.84 km) |
| Riom to Carqueiranne | 242.22 mi (389.81 km) |
| Riom to Carrieres-sous-Poissy | 216.91 mi (349.08 km) |
| Riom to Carrieres-sur-Seine | 211.99 mi (341.17 km) |
| Riom to Carros | 247.86 mi (398.89 km) |
| Riom to Carvin | 317.87 mi (511.57 km) |
| Riom to Castanet-Tolosan | 182.42 mi (293.58 km) |
| Riom to Castelginest | 172.87 mi (278.21 km) |
| Riom to Castelnau-le-Lez | 160.66 mi (258.55 km) |
| Riom to Castelnaudary | 186.85 mi (300.70 km) |
| Riom to Castelsarrasin | 161.28 mi (259.55 km) |
| Riom to Castres | 164.02 mi (263.97 km) |
| Riom to Caudebec-les-Elbeuf | 253.49 mi (407.95 km) |
| Riom to Caudry | 292.69 mi (471.04 km) |
