| Rehlingen-Siersburg to Cosenza | 839.78 mi (1,351.50 km) |
| Rehlingen-Siersburg to Cossato | 271.71 mi (437.28 km) |
| Rehlingen-Siersburg to Costa Volpino | 291.74 mi (469.51 km) |
| Rehlingen-Siersburg to Creazzo | 347.15 mi (558.69 km) |
| Rehlingen-Siersburg to Crema | 310.14 mi (499.12 km) |
| Rehlingen-Siersburg to Cremona | 332.16 mi (534.56 km) |
| Rehlingen-Siersburg to Crevalcore | 384.07 mi (618.10 km) |
| Rehlingen-Siersburg to Crispiano | 794.14 mi (1,278.04 km) |
| Rehlingen-Siersburg to Crosia | 838.71 mi (1,349.77 km) |
| Rehlingen-Siersburg to Crotone | 876.92 mi (1,411.27 km) |
| Rehlingen-Siersburg to Cuneo | 346.89 mi (558.27 km) |
| Rehlingen-Siersburg to Cuorgne | 278.64 mi (448.43 km) |
| Rehlingen-Siersburg to Cusano Milanino | 288.58 mi (464.42 km) |
| Rehlingen-Siersburg to Cutro | 876.03 mi (1,409.83 km) |
| Rehlingen-Siersburg to Cutrofiano | 851.50 mi (1,370.35 km) |
