| Riom to Carovigno | 813.46 mi (1,309.14 km) |
| Riom to Carpenedolo | 355.42 mi (571.99 km) |
| Riom to Carpi | 384.95 mi (619.52 km) |
| Riom to Carrara | 363.60 mi (585.15 km) |
| Riom to Carugate | 300.93 mi (484.31 km) |
| Riom to Casal di Principe | 646.49 mi (1,040.43 km) |
| Riom to Casale Monferrato | 264.03 mi (424.92 km) |
| Riom to Casale sul Sile | 444.80 mi (715.83 km) |
| Riom to Casalecchio di Reno | 409.43 mi (658.92 km) |
| Riom to Casalgrande | 381.50 mi (613.96 km) |
| Riom to Casalmaggiore | 359.39 mi (578.38 km) |
| Riom to Casalnuovo di Napoli | 659.72 mi (1,061.71 km) |
| Riom to Casalpusterlengo | 320.15 mi (515.22 km) |
| Riom to Casaluce | 650.00 mi (1,046.08 km) |
| Riom to Casamassima | 770.95 mi (1,240.72 km) |
