| Illkirch-Graffenstaden to Cosenza | 765.06 mi (1,231.25 km) |
| Illkirch-Graffenstaden to Cossato | 205.82 mi (331.24 km) |
| Illkirch-Graffenstaden to Costa Volpino | 217.39 mi (349.86 km) |
| Illkirch-Graffenstaden to Creazzo | 272.47 mi (438.50 km) |
| Illkirch-Graffenstaden to Crema | 237.35 mi (381.98 km) |
| Illkirch-Graffenstaden to Cremona | 258.88 mi (416.63 km) |
| Illkirch-Graffenstaden to Crevalcore | 309.62 mi (498.28 km) |
| Illkirch-Graffenstaden to Crispiano | 719.65 mi (1,158.16 km) |
| Illkirch-Graffenstaden to Crosia | 763.94 mi (1,229.45 km) |
| Illkirch-Graffenstaden to Crotone | 802.15 mi (1,290.94 km) |
| Illkirch-Graffenstaden to Cuneo | 286.62 mi (461.28 km) |
| Illkirch-Graffenstaden to Cuorgne | 217.00 mi (349.23 km) |
| Illkirch-Graffenstaden to Cusano Milanino | 217.11 mi (349.40 km) |
| Illkirch-Graffenstaden to Cutro | 801.26 mi (1,289.51 km) |
| Illkirch-Graffenstaden to Cutrofiano | 777.20 mi (1,250.78 km) |
