| Ilmenau to Cognac | 621.25 mi (999.81 km) |
| Ilmenau to Cogolin | 553.35 mi (890.53 km) |
| Ilmenau to Colmar | 240.82 mi (387.56 km) |
| Ilmenau to Colombes | 404.90 mi (651.63 km) |
| Ilmenau to Colomiers | 663.31 mi (1,067.49 km) |
| Ilmenau to Combs-la-Ville | 398.54 mi (641.38 km) |
| Ilmenau to Comines | 345.94 mi (556.74 km) |
| Ilmenau to Compiegne | 369.54 mi (594.72 km) |
| Ilmenau to Concarneau | 695.05 mi (1,118.58 km) |
| Ilmenau to Conde-sur-l'Escaut | 321.91 mi (518.07 km) |
| Ilmenau to Conflans-Sainte-Honorine | 409.64 mi (659.25 km) |
| Ilmenau to Corbas | 443.51 mi (713.76 km) |
| Ilmenau to Corbeil-Essonnes | 403.36 mi (649.14 km) |
| Ilmenau to Cormeilles-en-Parisis | 405.85 mi (653.15 km) |
| Ilmenau to Cosne sur Loire | 426.53 mi (686.44 km) |
