| Idanha-a-Nova to Coudekerque-Branche | 896.40 mi (1,442.62 km) |
| Idanha-a-Nova to Coueron | 574.47 mi (924.53 km) |
| Idanha-a-Nova to Coulommiers | 797.10 mi (1,282.80 km) |
| Idanha-a-Nova to Courbevoic | 776.09 mi (1,249.00 km) |
| Idanha-a-Nova to Courcouronnes | 767.15 mi (1,234.60 km) |
| Idanha-a-Nova to Cournon-d'Auvergne | 663.43 mi (1,067.68 km) |
| Idanha-a-Nova to Courrieres | 879.27 mi (1,415.05 km) |
| Idanha-a-Nova to Coutras | 505.99 mi (814.31 km) |
| Idanha-a-Nova to Couzeix | 593.87 mi (955.74 km) |
| Idanha-a-Nova to Cran-Gevrier | 790.07 mi (1,271.49 km) |
| Idanha-a-Nova to Craponne | 726.28 mi (1,168.83 km) |
| Idanha-a-Nova to Creil | 801.84 mi (1,290.43 km) |
| Idanha-a-Nova to Crepy-en-Valois | 812.48 mi (1,307.56 km) |
| Idanha-a-Nova to Crest | 707.82 mi (1,139.13 km) |
| Idanha-a-Nova to Creteil | 776.78 mi (1,250.11 km) |
