| Riom to Cervello | 316.04 mi (508.61 km) |
| Riom to Cervera | 306.20 mi (492.78 km) |
| Riom to Ceuti | 584.78 mi (941.11 km) |
| Riom to Cheste | 483.15 mi (777.55 km) |
| Riom to Chiclana de la Frontera | 811.77 mi (1,306.42 km) |
| Riom to Chipiona | 802.50 mi (1,291.51 km) |
| Riom to Chiva | 484.39 mi (779.55 km) |
| Riom to Churriana de la Vega | 697.48 mi (1,122.49 km) |
| Riom to Ciempozuelos | 521.68 mi (839.57 km) |
| Riom to Cieza | 577.44 mi (929.30 km) |
| Riom to Cisterniga | 488.17 mi (785.64 km) |
| Riom to Ciudad de Melilla | 798.53 mi (1,285.11 km) |
| Riom to Ciudad Real | 596.50 mi (959.97 km) |
| Riom to Ciudad-Rodrigo | 607.47 mi (977.63 km) |
| Riom to Cocentaina | 526.07 mi (846.63 km) |
