| Illingen to Cosenza | 830.07 mi (1,335.87 km) |
| Illingen to Cossato | 268.31 mi (431.80 km) |
| Illingen to Costa Volpino | 283.08 mi (455.57 km) |
| Illingen to Creazzo | 336.56 mi (541.64 km) |
| Illingen to Crema | 303.11 mi (487.81 km) |
| Illingen to Cremona | 324.73 mi (522.60 km) |
| Illingen to Crevalcore | 375.19 mi (603.81 km) |
| Illingen to Crispiano | 782.91 mi (1,259.98 km) |
| Illingen to Crosia | 828.46 mi (1,333.27 km) |
| Illingen to Crotone | 866.70 mi (1,394.82 km) |
| Illingen to Cuneo | 345.79 mi (556.49 km) |
| Illingen to Cuorgne | 276.87 mi (445.57 km) |
| Illingen to Cusano Milanino | 282.46 mi (454.58 km) |
| Illingen to Cutro | 865.93 mi (1,393.58 km) |
| Illingen to Cutrofiano | 839.95 mi (1,351.77 km) |
