| Riom to Cognac | 166.35 mi (267.71 km) |
| Riom to Cogolin | 248.13 mi (399.33 km) |
| Riom to Colmar | 250.64 mi (403.36 km) |
| Riom to Colombes | 213.18 mi (343.08 km) |
| Riom to Colomiers | 179.99 mi (289.67 km) |
| Riom to Combs-la-Ville | 193.57 mi (311.52 km) |
| Riom to Comines | 336.35 mi (541.30 km) |
| Riom to Compiegne | 243.67 mi (392.15 km) |
| Riom to Concarneau | 359.00 mi (577.75 km) |
| Riom to Conde-sur-l'Escaut | 315.53 mi (507.80 km) |
| Riom to Conflans-Sainte-Honorine | 219.74 mi (353.64 km) |
| Riom to Corbas | 87.62 mi (141.01 km) |
| Riom to Corbeil-Essonnes | 190.26 mi (306.20 km) |
| Riom to Cormeilles-en-Parisis | 217.04 mi (349.29 km) |
| Riom to Cosne sur Loire | 105.17 mi (169.26 km) |
